Difference between revisions of "Spartina gracilis"
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Spartina gracilis | name=Spartina gracilis | ||
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|authority=Trin. | |authority=Trin. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Linda A. Vorobik;Linda Bea Miller | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Colo.;N.Mex.;Wash.;Utah;Calif.;Minn.;Oreg.;Mont.;Alta.;B.C.;Man.;N.W.T.;Sask.;Wyo.;Kans.;N.Dak.;Nebr.;S.Dak.;Ariz.;Idaho;Nev. | |distribution=Colo.;N.Mex.;Wash.;Utah;Calif.;Minn.;Oreg.;Mont.;Alta.;B.C.;Man.;N.W.T.;Sask.;Wyo.;Kans.;N.Dak.;Nebr.;S.Dak.;Ariz.;Idaho;Nev. | ||
|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/V25/V25_862.xml |
|subfamily=Poaceae subfam. Chloridoideae | |subfamily=Poaceae subfam. Chloridoideae | ||
|tribe=Poaceae tribe Cynodonteae | |tribe=Poaceae tribe Cynodonteae | ||
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| − | -->[[Category:Treatment]][[Category:Spartina]] | + | --> |
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| + | [[Category:Spartina]] | ||
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Latest revision as of 17:30, 28 May 2021
Plants strongly rhizomatous; rhizomes elongate, 1.5-5 mm thick, whitish, scales not inflated, closely imbricate. Culms 40-100 cm tall, 2-3.5 mm thick, usually solitary, erect, terete, indurate, glabrous. Sheaths smooth or striate, mostly or completely glabrous, throats occasionally ciliate; ligules 0.5-1 mm; blades 6-30 cm long, 2.5-8 mm wide, flat, becoming involute, abaxial surfaces glabrous, adaxial surfaces scabrous, margins scabrous. Panicles 8-25 cm, not smooth in outline, with 3-12 branches; branches 1.5-8 cm, alternate, differing only slightly in length and spacing within a panicle, usually appressed, rarely spreading, with 10-30 spikelets. Spikelets 6-11 mm, ovate to lanceolate. Glumes with glabrous or sparingly hispidulous margins, apices acute or mucronate; lower glumes 3-7 mm, sides narrow, glabrous or sparsely pubescent, keels glabrous or strigose; upper glumes 6-10 mm, usually equaling the florets, keels strigose, hairs 0.2-0.5 mm, lateral veins 2, inconspicuous, both on the same side of the keel; lemmas glabrous or sparsely hirsute, keels hirsute, at least distally, hairs 0.3-1 mm, margins sparsely hairy, apices obtuse to rounded, sometimes obscurely lobed; paleas sparsely hispid distally, obtuse to slightly rounded; anthers 2.5-5 mm, well-filled, dehiscent at maturity. 2n = 40.
Distribution
Colo., N.Mex., Wash., Utah, Calif., Minn., Oreg., Mont., Alta., B.C., Man., N.W.T., Sask., Wyo., Kans., N.Dak., Nebr., S.Dak., Ariz., Idaho, Nev.
Discussion
Spartina gracilis is found on the margins of alkaline lakes and along stream margins and river bottoms. Its range extends from the southern portion of the Northwest Territories, Canada, to central Mexico.
Selected References
None.