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 1,201–1,250 of 1,999.
- Nomaphila stricta (Vahl) Nees NOST3stiff beargrass · Acanthaceae
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Nuphar lutea (L.) Sm. ssp. advena (Aiton) Kartesz & Gandhi NULUAyellow pond-lily · Nymphaeaceae - Nuphar lutea (L.) Sm. ssp. polysepala (Engelm.) E.O. Beal NULUPRocky Mountain pond-lily · Nymphaeaceae
- Nuphar lutea (L.) Sm. ssp. pumila (Timm) E.O. Beal NULUP2yellow pond-lily · Nymphaeaceae
- Nuphar lutea (L.) Sm. ssp. rubrodisca (Morong) Hellquist & Wiersema NULURyellow pond-lily · Nymphaeaceae
- Nuphar lutea (L.) Sm. ssp. sagittifolia (Walter) E.O. Beal NULUSyellow pond-lily · Nymphaeaceae
- Nuphar lutea (L.) Sm. ssp. variegata (Durand) E.O. Beal NULUVvarigated yellow pond-lily · Nymphaeaceae
- Nymphaea ampla (Salisb.) DC. NYAM2dotleaf waterlily · Nymphaeaceae
- Nymphaea capensis Thunb. NYCA2Cape blue waterlily · Nymphaeaceae
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Nymphaea elegans Hook. NYELtropical royalblue waterlily · Nymphaeaceae -
Nymphaea jamesoniana Planch. NYJAJames' waterlily · Nymphaeaceae -
Nymphaea leibergii Morong NYLELeiberg's waterlily · Nymphaeaceae -
Nymphaea lotus L. NYLOwhite Egyptian lotus · Nymphaeaceae -
Nymphaea mexicana Zucc. NYMEyellow waterlily · Nymphaeaceae - Nymphaea odorata Aiton NYODAmerican white waterlily · Nymphaeaceae
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Nymphaea tetragona Georgi NYTEpygmy waterlily · Nymphaeaceae - Nymphaea ×daubenyana W.T. Baxter ex Daubeny [caerulea × micrantha] NYDAwaterlily · Nymphaeaceae
- Nymphaea ×thiona Ward [mexicana × odorata] NYTHwaterlily · Nymphaeaceae
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Nymphoides aquatica (J.F. Gmel.) Kuntze NYAQbig floatingheart · Menyanthaceae -
Nymphoides cordata (Elliott) Fernald NYCOlittle floatingheart · Menyanthaceae -
Nymphoides cristata (Roxb.) Kuntze NYCRcrested floatingheart · Menyanthaceae -
Nymphoides humboldtiana (Kunth) Kuntze NYHUfloatingheart · Menyanthaceae -
Nymphoides indica (L.) Kuntze NYINwater snowflake · Menyanthaceae -
Nymphoides peltata (S.G. Gmel.) Kuntze NYPEyellow floatingheart · Menyanthaceae -
Nyssa aquatica L. NYAQ2water tupelo · Cornaceae -
Nyssa biflora Walter NYBIswamp tupelo · Cornaceae -
Nyssa ogeche W. Bartram ex Marshall NYOGOgeechee tupelo · Cornaceae -
Oclemena nemoralis (Aiton) Greene OCNE2bog aster · Asteraceae -
Oenanthe aquatica (L.) Poir. OEAQfineleaf waterdropwort · Apiaceae -
Oenanthe sarmentosa C. Presl ex DC. OESAwater parsely · Apiaceae -
Oenothera longissima Rydb. OELOlongstem evening primrose · Onagraceae -
Oenothera organensis Munz OEOROrgan Mountain evening primrose · Onagraceae -
Oldenlandia boscii (DC.) Chapm. OLBOBosc's mille graines · Rubiaceae -
Oligoneuron houghtonii (Torr. & A. Gray ex A. Gray) G.L. Nesom OLHOHoughton's goldenrod · Asteraceae -
Oligoneuron ohioense (Frank ex Riddell) G.N. Jones OLOHOhio goldenrod · Asteraceae -
Oligoneuron riddellii (Frank ex Riddell) Rydb. OLRI2Riddell's goldenrod · Asteraceae -
Orcuttia californica Vasey ORCACalifornia Orcutt grass · Poaceae -
Orcuttia inaequalis Hoover ORINSan Joaquin Valley Orcutt grass · Poaceae -
Orcuttia pilosa Hoover ORPIhairy Orcutt grass · Poaceae -
Orcuttia tenuis Hitchc. ORTEslender Orcutt grass · Poaceae -
Orcuttia viscida (Hoover) J. Reeder ORVI2Sacramento Orcutt grass · Poaceae -
Orontium aquaticum L. ORAQgoldenclub · Araceae -
Oryza sativa L. ORSArice · Poaceae -
Osmunda cinnamomea L. OSCIcinnamon fern · Osmundaceae -
Osmunda regalis L. var. spectabilis (Willd.) A. Gray OSRESroyal fern · Osmundaceae -
Ottelia alismoides (L.) Pers. OTALducklettuce · Hydrocharitaceae -
Oxycaryum cubense (Poepp. & Kunth) Lye OXCU2Cuban bulrush · Cyperaceae -
Oxypolis canbyi (J.M. Coult. & Rose) Fernald OXCA2Canby's cowbane · Apiaceae -
Oxypolis filiformis (Walter) Britton OXFIwater cowbane · Apiaceae -
Oxypolis occidentalis J.M. Coult. & Rose OXOCwestern cowbane · Apiaceae