UW Burke Herbarium species comparison

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Eleocharis atropurpurea

Eleocharis mamillata

soft-stem spike-rush

Eleocharis atropurpurea

Eleocharis mamillata
Flowering time June-September
Habitat Tidal flats, lakes, peatlands, and ditches.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring west of the Cascades crest in western Washington; Alaska to northwest Washington, east to the Canadian Great Plains, Great Lakes region.
[BONAP county map]
Origin Native Native
Conservation status Presumed extirpated in Washington (WANHP) Sensitive in Washington (WANHP)
Sibling taxa
E. acicularis, E. bella, E. bolanderi, E. coloradoensis, E. engelmannii, E. erythropoda, E. geniculata, E. macrostachya, E. mamillata, E. obtusa, E. ovata, E. palustris, E. parvula, E. quinqueflora, E. rostellata, E. suksdorfiana, E. uniglumis
E. acicularis, E. bella, E. bolanderi, E. coloradoensis, E. engelmannii, E. erythropoda, E. geniculata, E. macrostachya, E. obtusa, E. ovata, E. palustris, E. parvula, E. quinqueflora, E. rostellata, E. suksdorfiana, E. uniglumis
Subordinate taxa
E. mamillata ssp. mamillata
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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