Achnatherum
needlegrass, ricegrass
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Achnatherum
Synonyms & Misapplications:
(none provided)
Species in Achnatherum:
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Achnatherum hendersonii – Henderson's needlegrass
Occurring east of the Cascades crest in Douglas, Kittitas, and Yakima counties; central Washington to Jefferson County, Oregon. -
Achnatherum hymenoides – Indian ricegrass Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Great Plains.
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Achnatherum lemmonii – Lemmon's needlegrass Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains.
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ssp. lemmonii Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains.
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Achnatherum nelsonii – Nelson's needlegrass Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to the northern Great Plains and Colorado.
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ssp. dorei – Nelson's needlegrass Occurring chiefly east of the Cascades crest in Washington; Yukon to California, east to the Great Plains.
- ssp. nelsonii – Nelson's needlegrass Occurring east of the Cascades crest in Washington; southern British Columbia to Oregon, east to Montana and Nevada.
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Achnatherum occidentale – western needlegrass Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
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ssp. californicum – California needlegrass Occurring east of the Cascades in Washington; Washington to California, east to Montana, Wyoming, and Nevada.
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ssp. pubescens – western needlegrass Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east to Wyoming and Nevada.
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Achnatherum richardsonii – Richardson's ricegrass Occurring east of the Cascades crest in Washington; Alaska to northeastern Oregon, east to the Canadian Great Plains and south in the Rocky Mountains to Colorado.
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Achnatherum thurberianum – Thurber's ricegrass Occurring east of the Cascades crest in Washington; south-central British Columbia to California, east to Montana, Wyoming, and Colorado.
Additional Resources:
PNW Herbaria: Specimen records of Achnatherum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Achnatherum checklist entry
OregonFlora: Achnatherum information
E-Flora BC: Achnatherum atlas page
CalPhotos: Achnatherum photos
125 photographs:
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