Wetland Indicator Status

The National List of Plant Species that Occur in Wetlands was developed as an appendix to the Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al. 1979) to assist in the field identification of wetlands and hydrophytic species. Taxonomic refinements to an original draft list compiled in 1977 and assignment of an indicator status based on wetland fidelity was completed in 1988. The list was revised again in 1996 and is currently undergoing public review and comment.

On the National List, plants are assigned an Indicator Status by Region. Idaho is within the Pacific Northwest Region or Region 5. The indicator status ranges from Obligate Wetland (plants that almost always occur in wetlands) to Upland (plants that usually occur in non-wetlands).

The following table contains Wetland Indicator Status based on the 1996 draft revision for special status plant species and is arranged by scientific name.

The list only includes special status plant species that are tracked by the Idaho Conservation Data Center.

Definitions of Wetland Indicators are linked to column headings
Scientific Name	Common Name	National Range of Indicators	Northwest Regional Indicator
Agoseris lackschewitzii	Pink Agoseris		NI
Allenrolfea occidentalis	Iodine Bush	FACW,FACW+	FACW+
Allium madidum	Swamp Onion	OBL	OBL
Allium validum	Tall Swamp Onion	OBL	OBL
Andromeda polifolia	Bog-rosemary	OBL	OBL
Angelica kingii	Nevada Angelica	FACW*	NI
Antennaria arcuata	Meadow Pussytoes	FACW*	FACW*
Aster junciformis	Rush Aster	OBL	OBL
Astragalus leptaleus	Park Milkvetch	OBL*	OBL*
Betula pumila	Swamp Birch	OBL	OBL
Carex buxbaumii	Buxbaum's Sedge	FACW,OBL	OBL
Carex chordorrhiza	String-root Sedge	OBL	OBL
Carex comosa	Bristly Sedge	OBL	OBL
Carex flava	Yellow Sedge	OBL	OBL
Carex leptalea	Bristle-stalked Sedge	OBL	OBL
Carex livida	Pale Sedge	OBL	OBL
Carex parryana ssp idahoa	Idaho Sedge	FACW	FACW
Carex magellanica ssp irrigua	Poor Sedge	OBL	OBL
Carex rostrata	Beaked Sedge	OBL	OBL
Chrysosplenium tetandrum	Northern Golden-carpet	OBL	OBL
Cicuta bulbifera	Bulb-bearing Waterhemlock	OBL	OBL
Cyperus bipartitus	Shining Flatsedge	FACW*,OBL	OBL
Cypripedium parviflorum var pubescens	Small Yellow Lady's-slipper	FACU,FACW	FACW-
Drosera intermedia	Spoon-leaved Sundew	OBL
Dryopteris cristata	Crested-shield Fern	FACW,OBL	FACW
Eleocharis elliptica	Slender Spike-rush	FACW,FACW+	FACW
Epilobium palustre	Swamp Willow-weed	OBL	OBL
Eriophorum viridicarinatum	Green Keeled Cotton-grass	OBL	OBL
Gaultheria hispidula	Creeping Snowberry	FACW	FACW
Gentianella propinqua	Four-parted Gentian	FACU,FASW	FACW
Haplopappus hirtus var sonchifolius	Sticky Goldenweed	UPL*,FACU	UPL
Howellia aquatilis	Water Howellia	OBL	OBL
Hypericum majus	Large Canadian St. John's-wort	FACW-,FACW	FACW-
Iris versicolor	Blueflag	OBL
Kobresia simpliciuscula	Simple Kobresia	FAC,FACW	FAC
Lepidium davisii	Davis' Peppergrass		NI
Lomatogonium rotatum		OBL	OBL
Ludwigia polycarpa	Many-fruit False-loosestrife	OBL	NI
Lycopodiella inundata	Northern Bog Clubmoss	OBL	OBL
Muhlenbergia racemosa	Green Muhly	FAC*,FACW	FACW
Nymphaea leibergii	Leiberg's water-lilly	OBL	OBL
Phlox idahonis	Clearwater Phlox	FACW*	FACW*
Picea glauca	White Spruce	FACU,FAC*	FAC*
Primula alcalina	Alkali Primrose	OBL*	OBL*
Primula incana	Jones' Primrose	FACW,OBL	OBL
Psilocarphus tenellus	Slender Wooly-heads	FAC,OBL	OBL
Rubus bartonianus	Bartonberry	FACW*	FACW*
Salicornia rubra	Red Glasswort	OBL	OBL
Salix candida	Hoary Willow	OBL	OBL
Salix farriae	Farr's Willow	OBL	OBL
Salix glauca	Gray Willow	FAC,FACW	FACW
Salix pedicellarius	Bog Willow	OBL	OBL
Salix pseudomonticola	False Mountain Willow	FACW	FACW
Schoenoplectus subterminalis	Water Clubrush	OBL	OBL
Sphaeromeria potentilloides	Cinquefoil Tansy	FAC-,FACW	FAC-
Trichophorum alpinum	Hudson's Bay Bulrush	OBL	OBL
Trientalis arctica	Northern Starflower	FAC,OBL	OBL
Vaccinium oxycoccos	Bog Cranberry	OBL	OBL