Difference between revisions of "Coleanthus subtilis"
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name=Coleanthus subtilis | name=Coleanthus subtilis | ||
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|authority=(Tratt.) Seidl | |authority=(Tratt.) Seidl | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Sandy Long | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Oreg.;Wash.;B.C. | |distribution=Oreg.;Wash.;B.C. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_880.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Latest revision as of 16:25, 11 May 2021
Plants annual. Culms ascending or decumbent. Sheaths strongly inflated, uppermost sheath enclosing the base of the panicles; ligules 1-1.5 mm; blades 1-2 cm long, 0.5-1.5 mm wide. Panicles 1-5 cm, with 3-6 verticils. Lemmas 0.75-1.5 mm, ciliate on the keels, awnlike apices about equaling the lower portion; paleas about 0.5 mm, keels slightly prolonged; anthers about 0.3 mm. Caryopses about 1 mm. 2n = 14.
Distribution
Oreg., Wash., B.C.
Discussion
Coleanthus subtilis is an ephemeral pioneer species of wet, open habitats. It grows on wet, muddy to sandy, calcium-deficient soils on the shores of lakes, sandbars, and islands. In the Flora region, it is known from the Columbia River, and around Hatzic, Arrow and Shuswap lakes in British Columbia. It also grows in Europe, Russia, and China. Throughout its range, C. subtilis is known from relatively few, scattered locations. It is easily overlooked because of its diminutive size, and because it flowers in early spring or late fall. It is not clear whether it is native or introduced in the Flora region.
Selected References
None.