Eleocharis
spike-rush
17 species
1 subspecies and varieties
1 subspecies and varieties
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Eleocharis acicularis – needle spikerush
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast; circumboreal.
Habitat: Marshes, muddy shores, and other wet places.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast; circumboreal.
Habitat: Marshes, muddy shores, and other wet places.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Perennial
Eleocharis bella – pretty spikerush
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Montana, Nevada, Arizona, and New Mexico.
Habitat: Shores, sloughs, wet meadows, and vernal pools.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Montana, Nevada, Arizona, and New Mexico.
Habitat: Shores, sloughs, wet meadows, and vernal pools.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Perennial
Eleocharis coloradoensis – dwarf spike-rush
Distribution: Occurring east of the Cascades crest; southeastern British Columbia to California, east to Idaho, Utah, New Mexico, and Arizona, also in Great Plains and central North America.
Habitat: Sandy shores, deltas, and seeps.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest; southeastern British Columbia to California, east to Idaho, Utah, New Mexico, and Arizona, also in Great Plains and central North America.
Habitat: Sandy shores, deltas, and seeps.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Eleocharis engelmannii – Engelman spikerush
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Marshes and other wet places, from sea level to moderate elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Habitat: Marshes and other wet places, from sea level to moderate elevations in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Eleocharis erythropoda – bald spike-rush, redfoot spike-rush
Distribution: Occurring east of the Cascades crest in Washington; Alaska to Oregon, east from the Rocky Mountains to the Atlantic Coast.
Habitat: Tidal flats, shores, and limy fens.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Alaska to Oregon, east from the Rocky Mountains to the Atlantic Coast.
Habitat: Tidal flats, shores, and limy fens.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Eleocharis macrostachya – creeping spikerush
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to eastern Canada and the midwestern U.S.
Habitat: Shores, marshes, often alkaline, vernal pools, and dunes.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to eastern Canada and the midwestern U.S.
Habitat: Shores, marshes, often alkaline, vernal pools, and dunes.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Eleocharis mamillata – soft-stem spike-rush
Distribution: Occurring west of the Cascades crest in western Washington; Alaska to northwest Washington, east to the Canadian Great Plains, Great Lakes region.
Habitat: Tidal flats, lakes, peatlands, and ditches.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in western Washington; Alaska to northwest Washington, east to the Canadian Great Plains, Great Lakes region.
Habitat: Tidal flats, lakes, peatlands, and ditches.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
• ssp. mamillata – soft-stemmed spikerush
Eleocharis nitida – quill spike-rush
Distribution: Occurring west of the Cascades crest in Washington; Alaska to the Mount Rainier area.
Habitat: Pond shores, mossy springs.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; Alaska to the Mount Rainier area.
Habitat: Pond shores, mossy springs.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Eleocharis obtusa – blunt spikerush
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to Idaho, Wyoming, and Colorado, also east from the Great Plains to the Atlantic Coast.
Habitat: Pond and lake shores, riparian zones, and other wet areas.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to Idaho, Wyoming, and Colorado, also east from the Great Plains to the Atlantic Coast.
Habitat: Pond and lake shores, riparian zones, and other wet areas.
Origin: Native
Flowers: June-September
Growth Duration: Annual, Perennial
Eleocharis ovata – ovoid spikerush
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia and Alberta to Oregon, also in Arizona, and from Oklahoma east to eastern North America.
Habitat: Marshes and other wet places, from sea level to moderate elevagtions in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia and Alberta to Oregon, also in Arizona, and from Oklahoma east to eastern North America.
Habitat: Marshes and other wet places, from sea level to moderate elevagtions in the mountains.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Eleocharis palustris – common spikerush
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Wet places from sea level to moderate elevations in the mountains; tolerant of alkali.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Wet places from sea level to moderate elevations in the mountains; tolerant of alkali.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Eleocharis parvula – little-head spikerush
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, and from Kansas east and north to the Atlantic Coast.
Habitat: Wet, saline or alkaline soils.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, and from Kansas east and north to the Atlantic Coast.
Habitat: Wet, saline or alkaline soils.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Eleocharis quinqueflora – few-flowered spike-rush
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across the northern U.S. and Canada to northeastern North America; circumboreal.
Habitat: Bogs and other wet places, from the lowlands to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across the northern U.S. and Canada to northeastern North America; circumboreal.
Habitat: Bogs and other wet places, from the lowlands to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Eleocharis rostellata – walking sedge, beaked spikerush
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains, Great Lakes region, and eastern North America.
Habitat: Shores, wet meadows, seeps, hot springs, fens, often where alkaline.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains, Great Lakes region, and eastern North America.
Habitat: Shores, wet meadows, seeps, hot springs, fens, often where alkaline.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Eleocharis suksdorfiana – Suksdorf spikerush
Distribution: Occurring on both sides of the Cascades crest in Washington; central British Columbia to California, east to Montana, Wyoming, and Colorado.
Habitat: Shores, peatlands, wet meadows, and seeps from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; central British Columbia to California, east to Montana, Wyoming, and Colorado.
Habitat: Shores, peatlands, wet meadows, and seeps from middle elevations to the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Eleocharis uniglumis – slender spike-rush
Distribution: Occurring east of the Cascades crest in Washington, where known only from a historic collection (1935); British Columbia to Washington, also Nevada, scattered east across North America to the Atlantic Coast; circumboreal.
Habitat: Shores, dunes, alkaline marshes, and peatlands.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington, where known only from a historic collection (1935); British Columbia to Washington, also Nevada, scattered east across North America to the Atlantic Coast; circumboreal.
Habitat: Shores, dunes, alkaline marshes, and peatlands.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
