Taxa

• Animals (Kingdom Animalia) View Observations
  • Chordates (Phylum Chordata) View Observations
    • Vertebrates (Subphylum Vertebrata) View Observations
      • Amphibians (Class Amphibia) View Observations
        • Frogs and Toads (Order Anura) View Observations
          • True Toads (Family Bufonidae) View Observations
            • North American Toads (Genus Anaxyrus) View Observations
              • American Toad (Anaxyrus americanus) View Observations
      • Birds (Class Aves) View Observations
        • Perching Birds (Order Passeriformes) View Observations
          • Mockingbirds and Thrashers (Family Mimidae) View Observations
            • Genus Dumetella View Observations
              • Grey Catbird (Dumetella carolinensis) View Observations
      • Mammals (Class Mammalia) View Observations
        • Therians (Subclass Theria) View Observations
          • Placental Mammals (Infraclass Placentalia) View Observations
            • Primates, Rodents, and Allies (Superorder Euarchontoglires) View Observations
              • Rodents (Order Rodentia) View Observations
                • Beavers, Pocket Gophers, and Allies (Suborder Castorimorpha) View Observations
                  • Beavers (Family Castoridae) View Observations
                    • Beavers (Genus Castor) View Observations
                      • Canadian Beaver (Castor canadensis) View Observations
  • Molluscs (Phylum Mollusca) View Observations
    • Gastropods (Class Gastropoda) View Observations
      • Heterobranchs (Subclass Heterobranchia) View Observations
        • Infraclass Euthyneura View Observations
          • Subterclass Tectipleura View Observations
            • Superorder Eupulmonata View Observations
              • Common Land Snails and Slugs (Order Stylommatophora) View Observations
                • Helicinan Snails and Slugs (Suborder Helicina) View Observations
                  • Helicoid and Sagdoid Land Snails (Infraorder Helicoidei) View Observations
                    • Helicoid Land Snails (Superfamily Helicoidea) View Observations
                      • Helix Snails (Family Helicidae) View Observations
                        • Subfamily Helicinae View Observations
                          • Tribe Allognathini View Observations
                            • Genus Cepaea View Observations
                              • Brown-lipped Snail (Cepaea nemoralis) View Observations
  • Arthropods (Phylum Arthropoda) View Observations
    • Chelicerates (Subphylum Chelicerata) View Observations
      • Arachnids (Class Arachnida) View Observations
        • Mites and Ticks (Subclass Acari) View Observations
          • Superorder Acariformes View Observations
            • Order Sarcoptiformes View Observations
              • Endeostigmatan Mites (Suborder Endeostigmata) View Observations
                • Superfamily Eriophyoidea View Observations
                  • Gall and Rust Mites (Family Eriophyidae) View Observations
                    • Subfamily Eriophyinae View Observations
                      • Tribe Aceriini View Observations
                        • Genus Acalitus View Observations
                          • Beech Erineum Mite (Acalitus ferrugineum) View Observations
    • Hexapods (Subphylum Hexapoda) View Observations
      • Insects (Class Insecta) View Observations
        • Winged and Once-winged Insects (Subclass Pterygota) View Observations
          • Beetles (Order Coleoptera) View Observations
            • Water, Rove, Scarab, Long-horned, Leaf, and Snout Beetles (Suborder Polyphaga) View Observations
              • Cucujiform Beetles (Infraorder Cucujiformia) View Observations
                • Lady, Fungus, Scavenger, and Bark Beetles (Superfamily Coccinelloidea) View Observations
                  • Lady Beetles (Family Coccinellidae) View Observations
                    • Common Lady Beetles (Subfamily Coccinellinae) View Observations
                      • Black-spotted Lady Beetles (Tribe Coccinellini) View Observations
                        • Greater Lady Beetles (Genus Harmonia) View Observations
                          • Asian Lady Beetle (Harmonia axyridis) View Observations
          • True Bugs, Hoppers, Aphids, and Allies (Order Hemiptera) View Observations
            • Plant-parasitic Hemipterans (Suborder Sternorrhyncha) View Observations
              • Aphids and Allies (Infraorder Aphidomorpha) View Observations
                • Superfamily Aphidoidea View Observations
                  • Aphids (Family Aphididae) View Observations
                    • Woolly Aphids and Gall-making Aphids (Subfamily Eriosomatinae) View Observations
                      • Tribe Eriosomatini View Observations
                        • Genus Tetraneura View Observations
                          • Subgenus Tetraneurella View Observations
                            • Tetraneura akinire View Observations
          • Dragonflies and Damselflies (Order Odonata) View Observations
            • Dragonflies (Suborder Anisoptera) View Observations
              • Superfamily Libelluloidea View Observations
                • Skimmers (Family Libellulidae) View Observations
                  • Whitetails (Genus Plathemis) View Observations
                    • Common Whitetail (Plathemis lydia) View Observations
            • Damselflies (Suborder Zygoptera) View Observations
              • Superfamily Calopterygoidea View Observations
                • Broad-winged Damselflies (Family Calopterygidae) View Observations
                  • Jewelwings (Genus Calopteryx) View Observations
                    • Ebony Jewelwing (Calopteryx maculata) View Observations
• Plants (Kingdom Plantae) View Observations
  • Vascular Plants (Phylum Tracheophyta) View Observations
    • Ferns (Class Polypodiopsida) View Observations
      • Leptosporangiate Ferns (Subclass Polypodiidae) View Observations
        • Order Polypodiales View Observations
          • Suborder Dennstaedtiineae View Observations
            • Bracken Family (Family Dennstaedtiaceae) View Observations
              • Brackens (Genus Pteridium) View Observations
                • Common Bracken (Pteridium aquilinum) View Observations
          • Eupolypods Ii (Suborder Aspleniinae) View Observations
            • Sensitive Ferns and Allies (Family Onocleaceae) View Observations
              • Sensitive Ferns (Genus Onoclea) View Observations
                • Sensitive Fern (Onoclea sensibilis) View Observations
    • Conifers (Class Pinopsida) View Observations
      • Conifers (Order Pinales) View Observations
        • Cypress Family (Family Cupressaceae) View Observations
          • Cypresses, Cedars, Junipers, and Allies (Subfamily Cupressoideae) View Observations
            • Junipers (Genus Juniperus) View Observations
              • Scale-leaf Junipers (Section Sabina) View Observations
                • Eastern Redcedar (Juniperus virginiana) View Observations
    • Flowering Plants (Subphylum Angiospermae) View Observations
      • Dicots (Class Magnoliopsida) View Observations
        • Legumes, Milkworts, and Allies (Order Fabales) View Observations
          • Legumes (Family Fabaceae) View Observations
            • Subfamily Faboideae View Observations
              • Tribe Phaseoleae View Observations
                • Subtribe Glycininae View Observations
                  • Genus Amphicarpaea View Observations
                    • American Hog-Peanut (Amphicarpaea bracteata) View Observations
              • Tribe Trifolieae View Observations
                • Clovers (Genus Trifolium) View Observations
                  • Red Clover (Trifolium pratense) View Observations
                  • White Clover (Trifolium repens) View Observations
                • Medicks (Genus Medicago) View Observations
                  • Shamrock Medicks (Section Spirocarpos) View Observations
                    • Subsection Lupularia View Observations
                      • Black Medick (Medicago lupulina) View Observations
              • Tribe Loteae View Observations
                • Genus Securigera View Observations
                  • Purple Crownvetch (Securigera varia) View Observations
                • Bird's-foot Trefoils and Deervetches (Genus Lotus) View Observations
                  • Complex Lotus corniculatus View Observations
                    • Bird's-foot Trefoil (Lotus corniculatus) View Observations
              • Peas, Vetches, and Allies (Tribe Fabeae) View Observations
                • Vetches (Genus Vicia) View Observations
                  • Tufted Vetch (Vicia cracca) View Observations
        • Roses, Elms, Figs, and Allies (Order Rosales) View Observations
          • Rose Family (Family Rosaceae) View Observations
            • Brambles, Roses, Strawberries, and Allies (Subfamily Rosoideae) View Observations
              • Strawberries, Cinquefoils, and Allies (Tribe Potentilleae) View Observations
                • Cinquefoil Subtribe (Subtribe Potentillinae) View Observations
                  • Cinquefoils (Genus Potentilla) View Observations
                    • Silvery Cinquefoil (Potentilla argentea) View Observations
                    • Sulphur Cinquefoil (Potentilla recta) View Observations
              • Agrimonies and Burnets (Tribe Agrimonieae) View Observations
                • Agrimony Subtribe (Subtribe Agrimoniinae) View Observations
                  • Agrimonies (Genus Agrimonia) View Observations
                    • Downy Agrimony (Agrimonia pubescens) View Observations
              • Avens Tribe (Tribe Colurieae) View Observations
                • Avens (Genus Geum) View Observations
                  • Wood Avens (Geum urbanum) View Observations
              • Bramble Tribe (Tribe Rubeae) View Observations
                • Brambles (Genus Rubus) View Observations
                  • Black Raspberry (Rubus occidentalis) View Observations
                  • Subgenus Rubus View Observations
                    • European Blackberry Complex (Section Rubus) View Observations
                      • Subsection Rubus View Observations
                        • Series Alleghenienses (Complex Alleghenienses) View Observations
                          • Allegheny Blackberry (Rubus allegheniensis) View Observations
              • Rose Tribe (Tribe Roseae) View Observations
                • Roses (Genus Rosa) View Observations
                  • Multiflora Rose (Rosa multiflora) View Observations
            • Subfamily Amygdaloideae View Observations
              • Tribe Maleae View Observations
                • Rowans and Mountain Ashes (Genus Sorbus) View Observations
                  • European Mountain Ash (Sorbus aucuparia) View Observations
                • Hawthorns (Genus Crataegus) View Observations
                  • Hairy Cockspurthorn (Crataegus submollis) View Observations
              • Tribe Amygdaleae View Observations
                • Plums, Cherries, and Allies (Genus Prunus) View Observations
                  • Subgenus Padus View Observations
                    • Black Cherry (Prunus serotina) View Observations
                  • True Cherries (Subgenus Cerasus) View Observations
                    • Sweet Cherry (Prunus avium) View Observations
              • Tribe Neillieae View Observations
                • Ninebarks (Genus Physocarpus) View Observations
                  • Common Ninebark (Physocarpus opulifolius) View Observations
          • Buckthorn Family (Family Rhamnaceae) View Observations
            • Tribe Rhamneae View Observations
              • False-Buckthorns (Genus Frangula) View Observations
                • Glossy Buckthorn (Frangula alnus) View Observations
              • Buckthorns (Genus Rhamnus) View Observations
                • Common Buckthorn (Rhamnus cathartica) View Observations
          • Mulberry and Fig Family (Family Moraceae) View Observations
            • Mulberries (Genus Morus) View Observations
              • White Mulberry (Morus alba) View Observations
          • Nettle Family (Family Urticaceae) View Observations
            • Wood Nettles (Genus Laportea) View Observations
              • Wood Nettle (Laportea canadensis) View Observations
            • Nettles (Genus Urtica) View Observations
              • Slender Stinging Nettle (Urtica gracilis) View Observations
          • Elm Family (Family Ulmaceae) View Observations
            • Elms (Genus Ulmus) View Observations
              • Slippery Elm (Ulmus rubra) View Observations
          • Hackberry Family (Family Cannabaceae) View Observations
            • Hackberries (Genus Celtis) View Observations
              • Common Hackberry (Celtis occidentalis) View Observations
        • Heathers, Balsams, Primroses, and Allies (Order Ericales) View Observations
          • Primroses (Family Primulaceae) View Observations
            • Cape Myrtle Subfamily (Subfamily Myrsinoideae) View Observations
              • Loosestrifes (Genus Lysimachia) View Observations
                • Creeping Jenny (Lysimachia nummularia) View Observations
        • Dogwoods, Hydrangeas, and Allies (Order Cornales) View Observations
          • Dogwood Family (Family Cornaceae) View Observations
            • Dogwoods (Genus Cornus) View Observations
              • Subgenus Kraniopsis View Observations
                • Round-leaved Dogwood (Cornus rugosa) View Observations
              • Subgenus Mesomora View Observations
                • Alternate-leaved Dogwood (Cornus alternifolia) View Observations
        • Gentians, Dogbanes, Madders, and Allies (Order Gentianales) View Observations
          • Dogbane Family (Family Apocynaceae) View Observations
            • Milkweeds (Subfamily Asclepiadoideae) View Observations
              • Tribe Asclepiadeae View Observations
                • Subtribe Asclepiadinae View Observations
                  • Milkweeds (Genus Asclepias) View Observations
                    • Common Milkweed (Asclepias syriaca) View Observations
                • Subtribe Tylophorinae View Observations
                  • Dog-strangling Vines (Genus Vincetoxicum) View Observations
                    • European Swallow-Wort (Vincetoxicum rossicum) View Observations
          • Madder Family (Family Rubiaceae) View Observations
            • Subfamily Rubioideae View Observations
              • Tribe Rubieae View Observations
                • Bedstraws (Genus Galium) View Observations
                  • Galium Aparine Complex (Complex Galium aparine) View Observations
                    • Catchweed Bedstraw (Galium aparine) View Observations
                  • Complex Galium mollugo View Observations
                    • White Bedstraw (Galium album) View Observations
        • Pinks, Cactuses, and Allies (Order Caryophyllales) View Observations
          • Knotweed Family (Family Polygonaceae) View Observations
            • Subfamily Polygonoideae View Observations
              • Tribe Rumiceae View Observations
                • Docks (Genus Rumex) View Observations
                  • Sheep's Sorrel (Rumex acetosella) View Observations
                  • Curly Dock (Rumex crispus) View Observations
                  • Broad-leaved Dock (Rumex obtusifolius) View Observations
          • Pink Family (Family Caryophyllaceae) View Observations
            • Tribe Alsineae View Observations
              • Mouse-ear Chickweeds (Genus Cerastium) View Observations
                • Mouse-ear Chickweed (Cerastium fontanum) View Observations
            • Subfamily Caryophylloideae View Observations
              • Tribe Sileneae View Observations
                • Catchflies (Genus Silene) View Observations
                  • Subgenus Behenantha View Observations
                    • Section Melandrium View Observations
                      • White Campion (Silene latifolia) View Observations
                    • Section Behenantha View Observations
                      • Bladder Campion (Silene vulgaris) View Observations
        • Staff-vines and Allies (Order Celastrales) View Observations
          • Staff-vine Family (Family Celastraceae) View Observations
            • Spindles (Genus Euonymus) View Observations
              • Running Strawberry-Bush (Euonymus obovatus) View Observations
            • Bittersweets (Genus Celastrus) View Observations
              • Oriental Bittersweet (Celastrus orbiculatus) View Observations
        • Sunflowers, Bellflowers, Fanflowers, and Allies (Order Asterales) View Observations
          • Sunflowers, Daisies, Asters, and Allies (Family Asteraceae) View Observations
            • Thistles and Allies (Subfamily Carduoideae) View Observations
              • Tribe Cardueae View Observations
                • Thistles and Burdocks (Subtribe Carduinae) View Observations
                  • Burdocks (Genus Arctium) View Observations
                    • Lesser Burdock (Arctium minus) View Observations
                • Subtribe Centaureinae View Observations
                  • Knapweeds (Genus Centaurea) View Observations
                    • Subgenus Centaurea View Observations
                      • Section Centaurea View Observations
                        • Spotted Knapweed (Centaurea stoebe) View Observations
            • Chicories, Dandelions, and Allies (Subfamily Cichorioideae) View Observations
              • Lettuce, Chicory, Dandelion and Salsify Tribe (Tribe Cichorieae) View Observations
                • Hawkweeds (Subtribe Hieraciinae) View Observations
                  • Mouse Ear Hawkweeds (Genus Pilosella) View Observations
                    • Smooth Hawkweed (Pilosella piloselloides) View Observations
            • Subfamily Asteroideae View Observations
              • Chamomiles, Yarrows, and Allies (Tribe Anthemideae) View Observations
                • Subtribe Leucantheminae View Observations
                  • Genus Leucanthemum View Observations
                    • Complex Leucanthemum vulgare View Observations
                      • Oxeye Daisy (Leucanthemum vulgare) View Observations
                • Subtribe Anthemidinae View Observations
                  • Tansies (Genus Tanacetum) View Observations
                    • Tansy (Tanacetum vulgare) View Observations
                • Subtribe Matricariinae View Observations
                  • German Chamomiles and Pineapple-Weeds (Genus Matricaria) View Observations
                    • Pineapple-Weed (Matricaria discoidea) View Observations
              • Asters and Allies (Tribe Astereae) View Observations
                • Subtribe Solidagininae View Observations
                  • Goldenrods (Genus Solidago) View Observations
                    • Solidago Subg. Pleiactila (Subgenus Pleiactila) View Observations
                      • Solidago Sect. Glomeruliflorae (Section Glomeruliflorae) View Observations
                        • Broad-leaved Goldenrod (Solidago flexicaulis) View Observations
                • Subtribe Conyzinae View Observations
                  • Fleabanes and Horseweeds (Genus Erigeron) View Observations
                    • Robin's-Plantain (Erigeron pulchellus) View Observations
                    • Section Quercifolium View Observations
                      • Philadelphia Fleabane (Erigeron philadelphicus) View Observations
                        • Common Philadelphia Fleabane (Erigeron philadelphicus var. philadelphicus) View Observations
                • Subtribe Machaerantherinae View Observations
                  • Wood Asters (Genus Eurybia) View Observations
                    • Large-leaved Aster (Eurybia macrophylla) View Observations
              • Groundsels and Allies (Tribe Senecioneae) View Observations
                • Subtribe Tussilagininae View Observations
                  • Genus Tussilago View Observations
                    • Colt's-Foot (Tussilago farfara) View Observations
              • Coreopsis and Allies (Tribe Coreopsideae) View Observations
                • Tickseed (Genus Coreopsis) View Observations
                  • Tall Coreopsis (Coreopsis tripteris) View Observations
              • Sunflowers and Allies (Tribe Heliantheae) View Observations
                • Subtribe Zinniinae View Observations
                  • Oxeyes (Genus Heliopsis) View Observations
                    • False Sunflower (Heliopsis helianthoides) View Observations
          • Bellflower Family (Family Campanulaceae) View Observations
            • Bellflower Subfamily (Subfamily Campanuloideae) View Observations
              • Bellflowers (Genus Campanula) View Observations
                • Creeping Bellflower (Campanula rapunculoides) View Observations
        • Geraniums, Bridal Wreaths, and Allies (Order Geraniales) View Observations
          • Geranium Family (Family Geraniaceae) View Observations
            • Geraniums and Cranesbills (Genus Geranium) View Observations
              • Spotted Geranium (Geranium maculatum) View Observations
              • Subgenus Robertium View Observations
                • Section Ruberta View Observations
                  • Herb Robert (Geranium robertianum) View Observations
        • Soapberries, Cashews, Mahoganies, and Allies (Order Sapindales) View Observations
          • Cashew Family (Family Anacardiaceae) View Observations
            • Cashews, Sumacs, and Allies (Subfamily Anacardioideae) View Observations
              • Sumacs (Genus Rhus) View Observations
                • Staghorn Sumac (Rhus typhina) View Observations
          • Citrus Family (Family Rutaceae) View Observations
            • Subfamily Zanthoxyloideae View Observations
              • Prickly-Ashes (Genus Zanthoxylum) View Observations
                • Prickly Ash (Zanthoxylum americanum) View Observations
          • Soapberry Family (Family Sapindaceae) View Observations
            • Maples (Genus Acer) View Observations
              • Acer Sect. Acer (Section Acer) View Observations
                • Acer Ser. Saccharodendron (Complex Acer saccharum) View Observations
                  • Black Maple (Acer nigrum) View Observations
              • Acer Sect. Platanoidea (Section Platanoidea) View Observations
                • Norway Maple (Acer platanoides) View Observations
              • Acer Sect. Rubra (Section Rubra) View Observations
                • Silver Maple (Acer saccharinum) View Observations
        • Beeches, Oaks, Walnuts, and Allies (Order Fagales) View Observations
          • Beech Family (Family Fagaceae) View Observations
            • Oaks (Genus Quercus) View Observations
              • High-latitude Oaks (Subgenus Quercus) View Observations
                • White Oaks (Section Quercus) View Observations
                  • English Oak (Quercus robur) View Observations
                • Red Oaks (Section Lobatae) View Observations
                  • Black Oak (Quercus velutina) View Observations
            • Beeches (Genus Fagus) View Observations
              • American Beech (Fagus grandifolia) View Observations
          • Birch Family (Family Betulaceae) View Observations
            • Hornbeams (Genus Carpinus) View Observations
              • American Hornbeam (Carpinus caroliniana) View Observations
          • Walnut Family (Family Juglandaceae) View Observations
            • Walnuts (Genus Juglans) View Observations
              • Eastern Black Walnut (Juglans nigra) View Observations
            • Hickories (Genus Carya) View Observations
              • Bitternut Hickory (Carya cordiformis) View Observations
              • Shagbark Hickory (Carya ovata) View Observations
        • Mints, Plantains, Olives, and Allies (Order Lamiales) View Observations
          • Olive Family (Family Oleaceae) View Observations
            • Ashes (Genus Fraxinus) View Observations
              • Fraxinus Sect. Melioides (Section Melioides) View Observations
                • White Ash (Fraxinus americana) View Observations
              • Black Ash (Fraxinus nigra) View Observations
          • Mint Family (Family Lamiaceae) View Observations
            • Subfamily Nepetoideae View Observations
              • Tribe Mentheae View Observations
                • Balms, Mints, and Thymes (Subtribe Menthinae) View Observations
                  • Genus Clinopodium View Observations
                    • Basil-Thyme (Clinopodium acinos) View Observations
                • Water Horehound Subtribe (Subtribe Lycopinae) View Observations
                  • Water Horehounds (Genus Lycopus) View Observations
                    • American Bugleweed (Lycopus americanus) View Observations
                • Catmints, Ground Ivies, and Hyssops (Subtribe Nepetinae) View Observations
                  • Ground-Ivies (Genus Glechoma) View Observations
                    • Ground-Ivy (Glechoma hederacea) View Observations
            • Subfamily Lamioideae View Observations
              • Tribe Lamieae View Observations
                • Deadnettles (Genus Lamium) View Observations
                  • Yellow Archangel (Lamium galeobdolon) View Observations
          • Plantain Family (Family Plantaginaceae) View Observations
            • Tribe Veroniceae View Observations
              • Speedwells (Genus Veronica) View Observations
                • Subgenus Beccabunga View Observations
                  • Thyme-leaved Speedwell (Veronica serpyllifolia) View Observations
                • Subgenus Veronica View Observations
                  • Heath Speedwell (Veronica officinalis) View Observations
            • Penstemon and Allies (Tribe Cheloneae) View Observations
              • Beardtongues (Genus Penstemon) View Observations
                • Subgenus Penstemon View Observations
                  • Section Penstemon View Observations
                    • Hairy Beardtongue (Penstemon hirsutus) View Observations
        • Buttercups, Poppies, and Allies (Order Ranunculales) View Observations
          • Poppy Family (Family Papaveraceae) View Observations
            • Subfamily Papaveroideae View Observations
              • Tribe Chelidonieae View Observations
                • Bloodroots (Genus Sanguinaria) View Observations
                  • Bloodroot (Sanguinaria canadensis) View Observations
          • Buttercup Family (Family Ranunculaceae) View Observations
            • Anemones, Buttercups, Larkspurs and Allies (Subfamily Ranunculoideae) View Observations
              • Tribe Ranunculeae View Observations
                • Buttercups (Genus Ranunculus) View Observations
                  • Bristly Buttercup (Ranunculus hispidus) View Observations
                    • Bristly Buttercup (Ranunculus hispidus var. caricetorum) View Observations
                  • Creeping Buttercup (Ranunculus repens) View Observations
                  • Meadow Buttercup (Ranunculus acris) View Observations
                  • Hooked Buttercup (Ranunculus recurvatus) View Observations
          • Barberry Family (Family Berberidaceae) View Observations
            • Subfamily Berberidoideae View Observations
              • Tribe Berberideae View Observations
                • Subtribe Epimediinae View Observations
                  • Mayapples (Genus Podophyllum) View Observations
                    • Mayapple (Podophyllum peltatum) View Observations
        • Honeysuckles, Moschatels, and Allies (Order Dipsacales) View Observations
          • Honeysuckle Family (Family Caprifoliaceae) View Observations
            • Subfamily Caprifolioideae View Observations
              • Honeysuckles (Genus Lonicera) View Observations
                • Subgenus Lonicera View Observations
                  • Section Lonicera View Observations
                    • Morrow's Honeysuckle (Lonicera morrowii) View Observations
          • Elder Family (Family Viburnaceae) View Observations
            • Viburnums (Genus Viburnum) View Observations
              • Nannyberry (Viburnum lentago) View Observations
              • Guelder-Rose (Viburnum opulus) View Observations
                • Common Guelder-Rose (Viburnum opulus var. opulus) View Observations
        • Carrots, Ivies, and Allies (Order Apiales) View Observations
          • Carrot Family (Family Apiaceae) View Observations
            • Subfamily Apioideae View Observations
              • Tribe Scandiceae View Observations
                • Subtribe Scandicinae View Observations
                  • Genus Anthriscus View Observations
                    • Cow Parsley (Anthriscus sylvestris) View Observations
              • Tribe Tordylieae View Observations
                • Parsnips (Genus Pastinaca) View Observations
                  • Wild Parsnip (Pastinaca sativa) View Observations
        • Mallows, Rock-roses, and Allies (Order Malvales) View Observations
          • Mallow and Hibiscus Family (Family Malvaceae) View Observations
            • Linden Subfamily (Subfamily Tilioideae) View Observations
              • Lindens (Genus Tilia) View Observations
                • Little-leaf Linden (Tilia cordata) View Observations
                • Basswood (Tilia americana) View Observations
        • Laurels, Spicebushes, and Allies (Order Laurales) View Observations
          • Laurels (Family Lauraceae) View Observations
            • Spicebushes (Genus Lindera) View Observations
              • Northern Spicebush (Lindera benzoin) View Observations
        • Nances, Willows, and Allies (Order Malpighiales) View Observations
          • Willow Family (Family Salicaceae) View Observations
            • Poplars, Cottonwoods, and Aspens (Genus Populus) View Observations
              • Aspens and Allies (Section Populus) View Observations
                • Bigtooth Aspen (Populus grandidentata) View Observations
                • Trembling Aspen (Populus tremuloides) View Observations
            • Willows (Genus Salix) View Observations
              • True Willows (Subgenus Salix) View Observations
                • Section Salix View Observations
                  • Crack Willow (Salix euxina) View Observations
              • Sallows and Osiers (Subgenus Vetrix) View Observations
                • Section Cordatae View Observations
                  • Heart-leaved Willow (Salix eriocephala) View Observations
          • Violet Family (Family Violaceae) View Observations
            • Violets (Genus Viola) View Observations
              • Pansies and Violets (Subgenus Viola) View Observations
                • Section Viola (Section Viola) View Observations
                  • Subsection Rostratae View Observations
                    • Labrador Violet (Viola labradorica) View Observations
        • Borages (Order Boraginales) View Observations
          • Borage Family (Family Boraginaceae) View Observations
            • Baby Blue Eyes, Phacelias, and Waterleaves (Subfamily Hydrophylloideae) View Observations
              • Waterleaves (Genus Hydrophyllum) View Observations
                • Virginia Waterleaf (Hydrophyllum virginianum) View Observations
            • Subfamily Cynoglossoideae View Observations
              • Tribe Myosotideae View Observations
                • Forget-Me-Nots (Genus Myosotis) View Observations
                  • Blue Forget-Me-Not (Myosotis stricta) View Observations
        • Pepper Plants, Birthworts, and Allies (Order Piperales) View Observations
          • Birthwort Family (Family Aristolochiaceae) View Observations
            • Subfamily Asaroideae View Observations
              • Wild Gingers (Genus Asarum) View Observations
                • Subgenus Asarum (Subgenus Asarum) View Observations
                  • Canadian Wild Ginger (Asarum canadense) View Observations
                    • Tailed Wild Ginger (Asarum canadense var. canadense) View Observations
        • Mustards, Capers, and Allies (Order Brassicales) View Observations
          • Mustard Family (Family Brassicaceae) View Observations
            • Tribe Alysseae View Observations
              • Alyssum (Genus Alyssum) View Observations
                • Small Alison (Alyssum alyssoides) View Observations
            • Tribe Cardamineae View Observations
              • Wintercresses (Genus Barbarea) View Observations
                • Bitter Wintercress (Barbarea vulgaris) View Observations
              • Yellowcresses (Genus Rorippa) View Observations
                • Creeping Yellowcress (Rorippa sylvestris) View Observations
            • Tribe Thlaspideae View Observations
              • Garlic Mustards (Genus Alliaria) View Observations
                • Garlic Mustard (Alliaria petiolata) View Observations
            • Tribe Camelineae View Observations
              • Shepherd's-Purses (Genus Capsella) View Observations
                • Shepherd's-Purse (Capsella bursa-pastoris) View Observations
            • Tribe Hesperideae View Observations
              • Genus Hesperis View Observations
                • Dame's Rocket (Hesperis matronalis) View Observations
        • Begonias, Gourds, and Allies (Order Cucurbitales) View Observations
          • Gourd Family (Family Cucurbitaceae) View Observations
            • Tribe Sicyoeae View Observations
              • Genus Echinocystis View Observations
                • Wild Cucumber (Echinocystis lobata) View Observations
        • Saxifrages, Stonecrops, and Allies (Order Saxifragales) View Observations
          • Gooseberry Family (Family Grossulariaceae) View Observations
            • Currants and Gooseberries (Genus Ribes) View Observations
              • American Black Currant (Ribes americanum) View Observations
          • Witch-hazel Family (Family Hamamelidaceae) View Observations
            • Witch-Hazels (Genus Hamamelis) View Observations
              • American Witch-Hazel (Hamamelis virginiana) View Observations
        • Grapes and Allies (Order Vitales) View Observations
          • Grape Family (Family Vitaceae) View Observations
            • Virgin Creepers (Genus Parthenocissus) View Observations
              • Thicket Creeper (Parthenocissus inserta) View Observations
      • Monocots (Class Liliopsida) View Observations
        • Grasses, Sedges, Cattails, and Allies (Order Poales) View Observations
          • Sedges (Family Cyperaceae) View Observations
            • Subfamily Cyperoideae View Observations
              • Tribe Cariceae View Observations
                • True Sedges (Genus Carex) View Observations
                  • Carex Subg. Carex (Subgenus Carex) View Observations
                    • Carex Sect. Paniceae (Section Paniceae) View Observations
                      • Loose-flowered Sedge (Carex laxiflora) View Observations
                      • Eastern Woodland Sedge (Carex blanda) View Observations
                    • Carex Sect. Paludosae (Section Paludosae) View Observations
                      • Carex Hirta Clade (Complex Carex hirta) View Observations
                        • Gray's Sedge (Carex grayi) View Observations
                    • Carex Castanea Clade (Complex Carex pallescens) View Observations
                      • Graceful Sedge (Carex gracillima) View Observations
                      • Drooping Woodland Sedge (Carex arctata) View Observations
                      • Hairy Sedge (Carex hirtifolia) View Observations
                    • Carex Sect. Acrocystis (Section Acrocystis) View Observations
                      • Fibrous-rooted Sedge (Carex communis) View Observations
                    • Carex Sect. Pictae (Section Pictae) View Observations
                      • Long-stalked Sedge (Carex pedunculata) View Observations
                    • Carex Sect. Griseae (Section Griseae) View Observations
                      • Slender Woodland Sedge (Carex digitalis) View Observations
                        • Slender Woodland Sedge (Carex digitalis var. digitalis) View Observations
                      • Inflated Narrow-leaved Sedge (Carex grisea) View Observations
                  • Carex Subg. Vignea (Subgenus Vignea) View Observations
                    • Carex Rosea Clade (Complex Carex rosea) View Observations
                      • Rosy Sedge (Carex rosea) View Observations
                      • Bracted Sedge (Carex radiata) View Observations
                    • Carex Annectens Clade (Complex Carex diandra) View Observations
                      • Bur Reed Sedge (Carex sparganioides) View Observations
                      • Oval-headed Sedge (Carex cephalophora) View Observations
                      • Thin-leaved Sedge (Carex cephaloidea) View Observations
                      • Awl-fruited Sedge (Carex stipata) View Observations
                    • Carex Sect. Cyperoideae (Section Cyperoideae) View Observations
                      • Troublesome Sedge (Carex molesta) View Observations
                      • Greater Straw Sedge (Carex normalis) View Observations
          • Grasses (Family Poaceae) View Observations
            • Bristlegrasses, Bluestems, Paspalums, and Allies (Subfamily Panicoideae) View Observations
              • Bluestems, Lemon Grasses, Silvergrasses, and Allies (Tribe Andropogoneae) View Observations
                • Bluestems, Thatching Grasses, and Allies (Subtribe Andropogoninae) View Observations
                  • Little Bluestems and Allies (Genus Schizachyrium) View Observations
                    • Little Bluestem (Schizachyrium scoparium) View Observations
            • Subfamily Pooideae View Observations
              • Tribe Poeae View Observations
                • Subtribe Anthoxanthinae View Observations
                  • Sweetgrasses (Genus Anthoxanthum) View Observations
                    • Sweet Vernal Grass (Anthoxanthum odoratum) View Observations
                • Subtribe Dactylidinae View Observations
                  • Cocks-foot and Orchard Grasses (Genus Dactylis) View Observations
                    • Orchard Grass (Dactylis glomerata) View Observations
                • Subtribe Phalaridinae View Observations
                  • Canarygrasses (Genus Phalaris) View Observations
                    • Reed Canary Grass (Phalaris arundinacea) View Observations
                • Subtribe Poinae View Observations
                  • Bluegrasses (Genus Poa) View Observations
                    • Complex Poa annua View Observations
                      • Annual Meadow-Grass (Poa annua) View Observations
                    • Rough Meadow-Grass (Poa trivialis) View Observations
              • Tribe Bromeae View Observations
                • Bromes (Genus Bromus) View Observations
                  • Section Bromopsis View Observations
                    • Smooth Brome (Bromus inermis) View Observations
                  • Section Genea View Observations
                    • Cheatgrass (Bromus tectorum) View Observations
              • Tribe Triticeae View Observations
                • Subtribe Hordeinae View Observations
                  • Wild Ryes and Wheatgrasses (Genus Elymus) View Observations
                    • Canada Wild Rye (Elymus canadensis) View Observations
          • Bulrushes, Cattails, and Allies (Family Typhaceae) View Observations
            • Cattails (Genus Typha) View Observations
              • Broadleaf Cattail (Typha latifolia) View Observations
        • Agaves, Orchids, Irises, and Allies (Order Asparagales) View Observations
          • Agave and Allies (Family Asparagaceae) View Observations
            • Dragon Tree Subfamily (Subfamily Nolinoideae) View Observations
              • True and False Solomon's Seals (Tribe Polygonateae) View Observations
                • Mayflowers and False Solomon's Seals (Genus Maianthemum) View Observations
                  • False Solomon's Seal (Maianthemum racemosum) View Observations
                  • Starry False Solomon's-Seal (Maianthemum stellatum) View Observations
              • Cast-iron Plants and Lilies of the Valley (Tribe Convallarieae) View Observations
                • Lilies of the Valley (Genus Convallaria) View Observations
                  • European Lily of the Valley (Convallaria majalis) View Observations
          • Amaryllis, Onions, and Allies (Family Amaryllidaceae) View Observations
            • Subfamily Allioideae View Observations
              • Tribe Allieae View Observations
                • Onions (Genus Allium) View Observations
                  • Subgenus Amerallium View Observations
                    • Section Amerallium View Observations
                      • Canadian Meadow Garlic (Allium canadense) View Observations
          • Asphodels (Family Asphodelaceae) View Observations
            • Daylilies and Allies (Subfamily Hemerocallidoideae) View Observations
              • Daylilies (Genus Hemerocallis) View Observations
                • Orange Day-Lily (Hemerocallis fulva) View Observations
        • Aroids, Water-Plantains, Seagrass, and Allies (Order Alismatales) View Observations
          • Arum Family (Family Araceae) View Observations
            • Subfamily Aroideae View Observations
              • Jack-in-the-pulpit Tribe (Tribe Arisaemateae) View Observations
                • Jack-in-the-pulpits and Cobra Lilies (Genus Arisaema) View Observations
                  • Jack-in-the-Pulpits (Complex Arisaema triphyllum) View Observations
                    • Jack-in-the-Pulpit (Arisaema triphyllum) View Observations
            • Subfamily Orontioideae View Observations
              • Skunk Cabbages (Genus Symplocarpus) View Observations
                • Eastern Skunk Cabbage (Symplocarpus foetidus) View Observations
• Fungi Including Lichens (Kingdom Fungi) View Observations
  • Basidiomycete Fungi (Phylum Basidiomycota) View Observations
    • Subphylum Pucciniomycotina View Observations
      • Class Pucciniomycetes View Observations
        • Rust Fungi (Order Pucciniales) View Observations
          • Suborder Uredinineae View Observations
            • Family Pucciniaceae View Observations
              • Orange-Yellow Rusts (Genus Puccinia) View Observations
                • Complex Puccinia Coronata (Complex Puccinia coronata) View Observations
                  • Crown Rust (Puccinia coronata) View Observations