Explore / Wetland gradient / Obligate wetland (OBL)
Wetland gradient
Obligate wetland (OBL)
Species USDA classifies as OBL — found in wetlands more than 99% of the time. Cattails, marsh marigold, the duckweeds. The canonical "this site is a wetland" indicators.
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Showing 1,301–1,350 of 1,999.
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Pilea fontana (Lunell) Rydb. PIFOlesser clearweed · Urticaceae -
Pilea herniarioides (Sw.) Lindl. PIHECaribbean clearweed · Urticaceae -
Pilularia americana A. Braun PIAMAmerican pillwort · Marsileaceae -
Pinckneya bracteata (W. Bartram) Raf. PIBR6fevertree · Rubiaceae -
Pinguicula caerulea Walter PICA7blueflower butterwort · Lentibulariaceae -
Pinguicula ionantha Godfrey PIIOviolet butterwort · Lentibulariaceae -
Pinguicula lutea Walter PILU2yellow butterwort · Lentibulariaceae -
Pinguicula macroceras Link PIMA7California butterwort · Lentibulariaceae -
Pinguicula planifolia Chapm. PIPLChapman's butterwort · Lentibulariaceae -
Pinguicula primuliflora Alph. Wood & Godfrey PIPRsouthern butterwort · Lentibulariaceae -
Pinguicula pumila Michx. PIPU4small butterwort · Lentibulariaceae -
Pinguicula villosa L. PIVIhairy butterwort · Lentibulariaceae -
Pinguicula vulgaris L. PIVUcommon butterwort · Lentibulariaceae -
Pinus serotina Michx. PISEpond pine · Pinaceae -
Pistia stratiotes L. PIST2water lettuce · Araceae -
Plagiobothrys acanthocarpus (Piper) I.M. Johnst. PLACadobe popcornflower · Boraginaceae -
Plagiobothrys austiniae (Greene) I.M. Johnst. PLAUAustin's popcornflower · Boraginaceae -
Plagiobothrys chorisianus (Cham.) I.M. Johnst. PLCHartist's popcornflower · Boraginaceae - Plagiobothrys distantiflorus (Piper) I.M. Johnst. ex M. Peck PLDI2California popcornflower · Boraginaceae
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Plagiobothrys figuratus (Piper) I.M. Johnst. ex M. Peck PLFIfragrant popcornflower · Boraginaceae - Plagiobothrys glaber (A. Gray) I.M. Johnst. PLGLhairless popcornflower · Boraginaceae
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Plagiobothrys hirtus (Greene) I.M. Johnst. PLHI6rough popcornflower · Boraginaceae -
Plagiobothrys humistratus (Greene) I.M. Johnst. PLHUdwarf popcornflower · Boraginaceae -
Plagiobothrys leptocladus (Greene) I.M. Johnst. PLLEfinebranched popcornflower · Boraginaceae -
Plagiobothrys nitens (Greene) I.M. Johnst. PLNI2shiny-nutlet popcornflower · Boraginaceae -
Plagiobothrys parishii I.M. Johnst. PLPAParish's popcornflower · Boraginaceae -
Plagiobothrys strictus (Greene) I.M. Johnst. PLST2Calistoga popcornflower · Boraginaceae -
Plagiobothrys tener (Greene) I.M. Johnst. PLTE2slender popcornflower · Boraginaceae -
Plagiobothrys undulatus (Piper) I.M. Johnst. PLUN2artist's popcornflower · Boraginaceae -
Planera aquatica J.F. Gmel. PLAQplanertree · Ulmaceae - Plantago bigelovii A. Gray PLBI2coast plantain · Plantaginaceae
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Plantago cordata Lam. PLCO2heartleaf plantain · Plantaginaceae -
Plantago macrocarpa Cham. & Schltdl. PLMAseashore plantain · Plantaginaceae -
Platanthera aquilonis Sheviak PLAQ2northern green orchid · Orchidaceae -
Platanthera blephariglottis (Willd.) Lindl. PLBLwhite fringed orchid · Orchidaceae -
Platanthera chorisiana (Cham.) Rchb. PLCH3Chimissso's orchid · Orchidaceae -
Platanthera clavellata (Michx.) Luer PLCLsmall green wood orchid · Orchidaceae -
Platanthera cristata (Michx.) Lindl. PLCRcrested yellow orchid · Orchidaceae -
Platanthera huronensis (Nutt.) Lindl. PLHU2Huron green orchid · Orchidaceae -
Platanthera integra (Nutt.) A. Gray ex Beck PLIN5yellow fringeless orchid · Orchidaceae -
Platanthera integrilabia (Correll) Luer PLIN6white fringeless orchid · Orchidaceae -
Platanthera leucophaea (Nutt.) Lindl. PLLE2prairie white fringed orchid · Orchidaceae -
Platanthera limosa Lindl. PLLI3Thurber's bog orchid · Orchidaceae -
Platanthera tescamnis Sheviak & W.F. Jenn. PLTE5intermountain bog orchid · Orchidaceae - Platanthera ×andrewsii (M. White) Luer [lacera × psycodes] PLANfringed orchid · Orchidaceae
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Pleea tenuifolia Michx. PLTE3rush featherling · Liliaceae -
Pleuropogon californicus (Nees) Benth. ex Vasey PLCA6annual semaphoregrass · Poaceae -
Pleuropogon oregonus Chase PLOR3Oregon semaphoregrass · Poaceae -
Pleuropogon refractus (A. Gray) Benth. ex Vasey PLRE2nodding semaphoregrass · Poaceae -
Pluchea foetida (L.) DC. PLFOstinking camphorweed · Asteraceae