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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- wetland_code=OBL
Showing 1,251–1,300 of 1,999.
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Oxypolis rigidior (L.) Raf. OXRIstiff cowbane · Apiaceae -
Oxypolis ternata (Nutt.) A. Heller OXTEpiedmont cowbane · Apiaceae -
Packera glabella (Poir.) C. Jeffrey PAGL17butterweed · Asteraceae -
Packera subnuda (DC.) D.K. Trock & T.M. Barkley PASU40Buek's groundsel · Asteraceae -
Panicum hemitomon Schult. PAHE2maidencane · Poaceae -
Panicum rigidulum Bosc ex Nees PARI4redtop panicgrass · Poaceae -
Panicum tenerum Bey. ex Trin. PATE3bluejoint panicgrass · Poaceae -
Parapholis strigosa (Dumort.) C.E. Hubbard PAST20strigose sicklegrass · Poaceae -
Parnassia asarifolia Vent. PAAS2kidneyleaf grass of Parnassus · Saxifragaceae -
Parnassia caroliniana Michx. PACA13Carolina grass of Parnassus · Saxifragaceae -
Parnassia cirrata Piper PACI2San Bernardino grass of Parnassus · Saxifragaceae -
Parnassia fimbriata K.D. Koenig PAFI3fringed grass of Parnassus · Saxifragaceae -
Parnassia glauca Raf. PAGL3fen grass of Parnassus · Saxifragaceae -
Parnassia grandifolia DC. PAGRlargeleaf grass of Parnassus · Saxifragaceae -
Parnassia kotzebuei Cham. ex Spreng. PAKO3Kotzebue's grass of Parnassus · Saxifragaceae -
Parnassia palustris L. PAPA8marsh grass of Parnassus · Saxifragaceae - Parnassia palustris L. var. parviflora (DC.) B. Boivin PAPAP2smallflower grass of Parnassus · Saxifragaceae
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Paspalidium geminatum (Forssk.) Stapf PAGE2Egyptian panicgrass · Poaceae -
Paspalum acuminatum Raddi PAAC4brook crowngrass · Poaceae -
Paspalum denticulatum Trin. PADE24longtom · Poaceae -
Paspalum dissectum (L.) L. PADI5mudbank crowngrass · Poaceae -
Paspalum distichum L. PADI6knotgrass · Poaceae -
Paspalum fluitans (Elliott) Kunth PAFL5horsetail paspalum · Poaceae -
Paspalum modestum Mez PAMO11water paspalum · Poaceae -
Paspalum praecox Walter PAPR4early paspalum · Poaceae -
Paspalum vaginatum Sw. PAVAseashore paspalum · Poaceae -
Pavonia paludicola Nicolson ex Fryxell PAPA28swampbush · Malvaceae -
Pedicularis attollens A. Gray PEATlittle elephantshead · Scrophulariaceae -
Pedicularis chamissonis Stev. PECHChamisso's lousewort · Scrophulariaceae -
Pedicularis groenlandica Retz. PEGR2elephanthead lousewort · Scrophulariaceae -
Pedicularis lanceolata Michx. PELA2swamp lousewort · Scrophulariaceae -
Peltandra sagittifolia (Michx.) Morong PESA7white arrow arum · Araceae -
Peltandra virginica (L.) Schott PEVIgreen arrow arum · Araceae -
Penthorum sedoides L. PESE6ditch stonecrop · Crassulaceae -
Pentodon pentandrus (Schumach. & Thonn.) Vatke PEPE14Hale's pentodon · Rubiaceae -
Peucedanum palustre (L.) Moench PEPA22hogfennel · Apiaceae -
Phalacroseris bolanderi A. Gray PHBO2Bolander's mock dandelion · Asteraceae -
Phalaris arundinacea L. PHAR3reed canarygrass · Poaceae -
Phanopyrum gymnocarpon (Elliott) Nash PHGY2savannah-panicgrass · Poaceae -
Phippsia algida (Sol.) R. Br. PHALicegrass · Poaceae -
Phragmites australis (Cav.) Trin. ex Steud. PHAU7common reed · Poaceae -
Phyla lanceolata (Michx.) Greene PHLA3lanceleaf fogfruit · Verbenaceae -
Phyla stoechadifolia (L.) Small PHST8southern fogfruit · Verbenaceae -
Phyllanthus fluitans Benth. ex Müll. Arg. PHFL10floating spurge · Euphorbiaceae -
Phyllospadix scouleri Hook. PHSC2Scouler's surfgrass · Zosteraceae -
Phyllospadix torreyi S. Watson PHTOTorrey's surfgrass · Zosteraceae -
Physostegia correllii (Lundell) Shinners PHCO17Correll's false dragonhead · Lamiaceae -
Physostegia godfreyi Cantino PHGO2Godfrey's false dragonhead · Lamiaceae -
Physostegia intermedia (Nutt.) Engelm. & A. Gray PHIN8slender false dragonhead · Lamiaceae -
Physostegia leptophylla Small PHLE9slenderleaf false dragonhead · Lamiaceae