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Bouteloua

Bouteloua
Family: Poaceae
Bouteloua image
Sue Carnahan
  • FNA
  • Gleason & Cronquist
  • Resources
J.K. Wipff. Flora of North America
Plants annual or perennial; synoecious; habit various, cespitose, stoloniferous, or rhizomatous. Culms 1-80 cm. Leaves usually mostly basal; sheaths open; ligules of hairs, membranous, or membranous and ciliate. Inflorescences terminal, panicles of 1-80 solitary, spikelike branches, exceeding the upper leaves; branches 4-50(75) mm, not woody, 1-sided, usually racemose on elongate rachises, sometimes digitate or subdigitate, with 1-130+ sessile to subsessile spikelets in 2 rows, axes terminating in a spikelet or extending beyond the base of the distal spikelet. Spikelets closely imbricate, appressed to pectinate, laterally compressed or terete, with 1-2(3) florets, lowest floret in each spikelet bisexual, distal florets staminate or sterile; disarticulation at the base of the branches or above the glumes. Glumes unequal or subequal, 1 or both glumes equaled or exceeded by the distal floret, 1-veined, acute or acuminate, sometimes shortly awned; lower glumes usually shorter than the lowest floret; lemmas of lowest florets entire, bilobed, trilobed, or 4-lobed, 3-veined, veins usually extended into 3 short awns; paleas of lowest florets 2-veined, veins sometimes excurrent; distal floret(s) staminate or sterile, varying from similar to the lowest floret in shape, size, and venation to sterile and reduced to an awn column with well-developed awns or to a flabellate scale. x = 10. Named for the brothers Claudio (1774-1842) and Esteban (1776-1813) Boutelou Agraz, Spanish botanists.
Vascular plants of NE US and adjacent Canada
Spikelets with 1 perfect fl and 1 or more sterile vestiges, articulated above the glumes, inserted in 2 rows on one side of a narrow flat rachis; glumes unequal, narrow, 1-veined, acuminate to awn-pointed; fertile lemma rounded on the back, 3-veined, the lateral veins marginal or submarginal, usually excurrent below the tip into a short awn; vestige stipitate, reduced to an empty 3-awned lemma; usually tufted, the relatively short spikes 1-many, racemose on a common axis. 40, New World.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: NAU-Yuma BSC 414 || << 51 - 63 taxa >>
Bouteloua scabra
Media
not available
Map not
Available
Bouteloua scorpioides
Media resource of Bouteloua scorpioides
Map not
Available
Bouteloua simplex
Media resource of Bouteloua simplex
Map not
Available
Bouteloua sonorae
Media resource of Bouteloua sonorae
Map not
Available
Bouteloua stolonifera
Media resource of Bouteloua stolonifera
Map not
Available
Bouteloua swallenii
Media resource of Bouteloua swallenii
Map not
Available
Bouteloua tenuis
Media resource of Bouteloua tenuis
Map not
Available
Bouteloua triaena
Media resource of Bouteloua triaena
Map not
Available
Bouteloua trifida
Media resource of Bouteloua trifida
Map not
Available
Bouteloua uniflora
Media resource of Bouteloua uniflora
Map not
Available
Bouteloua vaneedenii
Media resource of Bouteloua vaneedenii
Map not
Available
Bouteloua warnockii
Media resource of Bouteloua warnockii
Map not
Available
Bouteloua williamsii
Media resource of Bouteloua williamsii
Map not
Available
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