Difference between revisions of "Bouteloua uniflora"

Vasey
Common names: Neally's grama
Treatment appears in FNA Volume 25. Treatment on page 255.
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|distribution=Tex.
 
|distribution=Tex.
|discussion=<p><i>Bouteloua uniflora</i> grows primarily in fertile, rocky, limestone soils of Texas and adjacent Coahuila, Mexico at 300-1000 m. A disjunct collection has been reported from Zion National Park, Utah. Plants in the Flora region belong to <i>Bouteloua uniflora</i> Vasey <i></i>var.<i> uniflora</i>, which differs from <i>B. uniflora</i> <i></i>var.<i> coahuilensis</i> Gould & Kapadia in having taller (40-60 cm, not 20-40 cm) leafy, rather than scapose, culms, longer leaf blades (12-16 cm versus 6-12 cm), and 50-70, rather than 15-40, panicle branches.</p>
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|discussion=<p><i>Bouteloua uniflora</i> grows primarily in fertile, rocky, limestone soils of Texas and adjacent Coahuila, Mexico at 300-1000 m. A disjunct collection has been reported from Zion National Park, Utah. Plants in the Flora region belong to <i>Bouteloua uniflora</i> Vasey <i></i></i>var.<i><i> uniflora</i>, which differs from <i>B. uniflora</i> <i></i></i>var.<i><i> coahuilensis</i> Gould & Kapadia in having taller (40-60 cm, not 20-40 cm) leafy, rather than scapose, culms, longer leaf blades (12-16 cm versus 6-12 cm), and 50-70, rather than 15-40, panicle branches.</p>
 
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|publication year=
 
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|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V25/V25_872.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_872.xml
 
|subfamily=Poaceae subfam. Chloridoideae
 
|subfamily=Poaceae subfam. Chloridoideae
 
|tribe=Poaceae tribe Cynodonteae
 
|tribe=Poaceae tribe Cynodonteae

Revision as of 19:25, 24 September 2019

Plants perennial; cespitose, without rhizomes or stolons. Culms 20-60 cm, stiffly erect, glabrous. Sheaths mostly glabrous, a few long hairs present near the ligules; ligules 0.2-0.5 mm, of hairs; blades 6-16 cm long, 1-2 mm wide, involute when dry, glabrous, bases usually with papillose-based hairs on the margins. Panicles 5-10(14) cm, with 15-70 branches; branches 5-9 mm, deciduous, scabrous, with 1 spikelet (lower branches occasionally with 2 spikelets), axes extending 3-4 mm beyond the terminal spikelets, apices entire; disarticulation at the base of the branches. Spikelets appressed, with 1 bisexual and 0-1 rudimentary florets. Glumes acute to slightly cleft and minutely apiculate, midveins usually scabrous; lower glumes 2.5-4 mm; upper glumes 6.2-8 mm, mostly smooth, midveins usually scabrous; lowest lemmas 6-7.5 mm, acute or minutely cleft, glabrous, unawned, sometimes mucronate; lowest paleas unawned, glabrous; anthers 2.5-3 mm, bright yellow; second florets absent or reduced to 1 or 3 short awns, glabrous. Caryopses about 3 mm. 2n = 20.

Discussion

Bouteloua uniflora grows primarily in fertile, rocky, limestone soils of Texas and adjacent Coahuila, Mexico at 300-1000 m. A disjunct collection has been reported from Zion National Park, Utah. Plants in the Flora region belong to Bouteloua uniflora Vasey var. uniflora, which differs from B. uniflora var. coahuilensis Gould & Kapadia in having taller (40-60 cm, not 20-40 cm) leafy, rather than scapose, culms, longer leaf blades (12-16 cm versus 6-12 cm), and 50-70, rather than 15-40, panicle branches.

Selected References

None.

Lower Taxa

None.