Difference between revisions of "Sporobolus pyramidatus"

(Lam.) Hitchc.
Common names: Whorled dropseed
Synonyms: Sporobolus pulvinatus unknown Sporobolus patens unknown Sporobolus argutus unknown
Treatment appears in FNA Volume 25. Treatment on page 119.
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|distribution=Puerto Rico;Md.;Kans.;Okla.;Colo.;N.Mex.;Tex.;La.;Pa.;Mo.;Nebr.;N.Y.;Pacific Islands (Hawaii);Ill.;Utah;Virgin Islands;Ariz.;Fla.;Ark.
 
|distribution=Puerto Rico;Md.;Kans.;Okla.;Colo.;N.Mex.;Tex.;La.;Pa.;Mo.;Nebr.;N.Y.;Pacific Islands (Hawaii);Ill.;Utah;Virgin Islands;Ariz.;Fla.;Ark.
|discussion=<p><i>Sporobolus pyramidatus</i> is native to the Americas, extending from the southern United States to Argentina. It grows in disturbed soils, roadsides, railways, coastal sands, and alluvial slopes in many plant communities, at elevations from 0-1500 m. Morphologically, it is very similar to the Eastern Hemisphere S. coromandelianus (Retz.) Kunth, suggesting that they are closely related.</p>
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|discussion=<p>Sporobolus pyramidatus is native to the Americas, extending from the southern United States to Argentina. It grows in disturbed soils, roadsides, railways, coastal sands, and alluvial slopes in many plant communities, at elevations from 0-1500 m. Morphologically, it is very similar to the Eastern Hemisphere S. coromandelianus (Retz.) Kunth, suggesting that they are closely related.</p>
 
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
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|illustrator=Linda A. Vorobik and Hana Pazdírková
 
|distribution=Puerto Rico;Md.;Kans.;Okla.;Colo.;N.Mex.;Tex.;La.;Pa.;Mo.;Nebr.;N.Y.;Pacific Islands (Hawaii);Ill.;Utah;Virgin Islands;Ariz.;Fla.;Ark.
 
|distribution=Puerto Rico;Md.;Kans.;Okla.;Colo.;N.Mex.;Tex.;La.;Pa.;Mo.;Nebr.;N.Y.;Pacific Islands (Hawaii);Ill.;Utah;Virgin Islands;Ariz.;Fla.;Ark.
 
|reference=None
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_188.xml
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|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_188.xml
 
|subfamily=Poaceae subfam. Chloridoideae
 
|subfamily=Poaceae subfam. Chloridoideae
 
|tribe=Poaceae tribe Cynodonteae
 
|tribe=Poaceae tribe Cynodonteae

Revision as of 16:17, 30 October 2019

Plants annual, or short-lived perennials flowering in the first year; cespitose, not rhizomatous. Culms 7-35(60) cm, erect or decumbent. Sheaths rounded below, margins and apices hairy, hairs to 3 mm; ligules 0.3-1 mm; blades 2-12(20) cm long, 2-6 mm wide, flat, abaxial surface glabrous, adaxial surface scabridulous, sometimes sparsely hispid, margins ciliate-pectinate. Panicles 4-15(18) cm long, 0.3-6 cm wide, open (contracted when immature), pyramidal; lower nodes with 7-12(15) branches; primary branches 0.5-4.5 cm, spreading 30-90° from the rachis, with elongated glands, without spikelets on the lower 1/3 – 1/2, secondary branches appressed; pedicels 0.1-0.5 mm, appressed. Spikelets 1.2-1.8 mm, plumbeous or brownish, often secund along the branch. Glumes unequal, ovate to obovate, membranous; lower glumes 0.3-0.7 mm, without midveins; upper glumes 1.2-1.8 mm, at least 2/3 as long as the florets, often longer; lemmas 1.2-1.7 mm, ovate to elliptic, membranous, glabrous, acute; paleas 1.1-1.6 mm, ovate to elliptic, membranous, glabrous; anthers 0.2-0.4 mm, yellowish or purplish. Fruits 0.6-1 mm, obovoid, faintly striate, light brownish. 2n = 24, 36, 54.

Distribution

Puerto Rico, Md., Kans., Okla., Colo., N.Mex., Tex., La., Pa., Mo., Nebr., N.Y., Pacific Islands (Hawaii), Ill., Utah, Virgin Islands, Ariz., Fla., Ark.

Discussion

Sporobolus pyramidatus is native to the Americas, extending from the southern United States to Argentina. It grows in disturbed soils, roadsides, railways, coastal sands, and alluvial slopes in many plant communities, at elevations from 0-1500 m. Morphologically, it is very similar to the Eastern Hemisphere S. coromandelianus (Retz.) Kunth, suggesting that they are closely related.

Selected References

None.

Lower Taxa

None.
... more about "Sporobolus pyramidatus"
Paul M. Peterson +, Stephan L. Hatch +  and Alan S. Weakley +
(Lam.) Hitchc. +
Whorled dropseed +
Puerto Rico +, Md. +, Kans. +, Okla. +, Colo. +, N.Mex. +, Tex. +, La. +, Pa. +, Mo. +, Nebr. +, N.Y. +, Pacific Islands (Hawaii) +, Ill. +, Utah +, Virgin Islands +, Ariz. +, Fla. +  and Ark. +
Sporobolus pulvinatus +, Sporobolus patens +  and Sporobolus argutus +
Sporobolus pyramidatus +
Sporobolus +
species +