Explore / Wetland gradient / Facultative (FAC)
Wetland gradient
Facultative (FAC)
Species USDA classifies as FAC — wetlands and uplands roughly evenly. The generalists.
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Showing 1,501–1,550 of 2,559.
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Oldenlandia corymbosa L. OLCOflat-top mille graines · Rubiaceae -
Ophioglossum californicum Prantl OPCA8California adderstongue · Ophioglossaceae -
Ophioglossum crotalophoroides Walter OPCRbulbous adderstongue · Ophioglossaceae -
Ophioglossum nudicaule L. f. OPNUleast adderstongue · Ophioglossaceae -
Ophioglossum petiolatum Hook. OPPE2longstem adderstongue · Ophioglossaceae -
Ophioglossum vulgatum L. OPVUsouthern adderstongue · Ophioglossaceae -
Oplismenus hirtellus (L.) P. Beauv. OPHIbasketgrass · Poaceae -
Oplopanax horridus (Sm.) Miq. OPHOdevilsclub · Araliaceae -
Orbexilum simplex (Nutt. ex Torr. & A. Gray) Rydb. ORSIsinglestem leather-root · Fabaceae -
Oreostemma alpigenum (Torr. & A. Gray) Greene ORAL4tundra aster · Asteraceae -
Orthilia secunda (L.) House ORSEsidebells wintergreen · Pyrolaceae -
Orthocarpus bracteosus Benth. ORBRrosy owl's-clover · Scrophulariaceae - Osmanthus americanus (L.) Benth. & Hook. f. ex A. Gray OSAMdevilwood · Oleaceae
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Osmorhiza longistylis (Torr.) DC. OSLOlongstyle sweetroot · Apiaceae -
Osmorhiza purpurea (J.M. Coult. & Rose) Suksd. OSPUpurple sweetroot · Apiaceae -
Osmunda claytoniana L. OSCL2interrupted fern · Osmundaceae -
Ostrya knowltonii Sarg. OSKNKnowlton's hophornbeam · Betulaceae -
Oxalis montana Raf. OXMOmountain woodsorrel · Oxalidaceae -
Oxalis trilliifolia Hook. OXTRthreeleaf woodsorrel · Oxalidaceae -
Oxyria digyna (L.) Hill OXDI3alpine mountainsorrel · Polygonaceae -
Oxytropis splendens Douglas ex Hook. OXSPshowy locoweed · Fabaceae -
Packera bolanderi (A. Gray) W.A. Weber & Á. Löve PABO6Bolander's ragwort · Asteraceae -
Packera crocata (Rydb.) W.A. Weber & Á. Löve PACR5saffron ragwort · Asteraceae -
Packera dimorphophylla (Greene) W.A. Weber & Á. Löve PADI11splitleaf groundsel · Asteraceae -
Packera pauciflora (Pursh) Á. Löve & D. Löve PAPA19alpine groundsel · Asteraceae -
Packera paupercula (Michx.) Á. Löve & D. Löve PAPA20balsam groundsel · Asteraceae -
Packera subnuda (DC.) D.K. Trock & T.M. Barkley PASU40Buek's groundsel · Asteraceae -
Pandanus tectorius Parkinson ex Zucc. PATE2Tahitian screwpine · Pandanaceae -
Panicum amarum Elliott PAAM2bitter panicgrass · Poaceae -
Panicum anceps Michx. PAANbeaked panicgrass · Poaceae -
Panicum brachyanthum Steud. PABR2prairie panicgrass · Poaceae -
Panicum capillare L. PACA6witchgrass · Poaceae -
Panicum coloratum L. PACO2kleingrass · Poaceae -
Panicum dichotomiflorum Michx. PADIfall panicgrass · Poaceae -
Panicum diffusum Sw. PADI7West Indian panicgrass · Poaceae -
Panicum flexile (Gattinger) Scribn. PAFL2wiry panicgrass · Poaceae -
Panicum gattingeri Nash PAGAGattinger's panicgrass · Poaceae -
Panicum hillmanii Chase PAHI3Hillman's panicgrass · Poaceae -
Panicum obtusum Kunth PAOBvine mesquite · Poaceae -
Panicum philadelphicum Bernh. ex Trin. PAPHPhiladelphia panicgrass · Poaceae -
Panicum repens L. PARE3torpedo grass · Poaceae -
Panicum virgatum L. PAVI2switchgrass · Poaceae -
Paraderris elliptica (Wall.) Adema PAEL6Tubaroot · Fabaceae -
Parentucellia viscosa (L.) Caruel PAVI3yellow glandweed · Scrophulariaceae -
Parietaria floridana Nutt. PAFL3Florida pellitory · Urticaceae -
Parietaria pensylvanica Muhl. ex Willd. PAPE5Pennsylvania pellitory · Urticaceae -
Parietaria praetermissa Hinton PAPR6clustered pellitory · Urticaceae -
Parkinsonia aculeata L. PAAC3Jerusalem thorn · Fabaceae -
Paronychia ahartii Ertter PAAHAhart's nailwort · Caryophyllaceae -
Parthenium hysterophorus L. PAHYSanta Maria feverfew · Asteraceae