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Muhlenbergia uniseta (Kunth) Columbus  
Family: Poaceae
Fragile Muhly
[Aegopogon cenchroides var. abortivus E. Fourn., moreAegopogon gracilis Vasey, Aegopogon unisetus (Lag.) Roem. & Schult., Arundo tenella Spreng., Chloris pedicellata Steud., Cynosurus tenellus Cav. ex DC., Muhlenbergia exilis E. Fourn., Muhlenbergia geminiflora (Kunth) P.M. Peterson, Muhlenbergia sprengelii Trin., Polypogon gracilis Spreng., Polypogon tenellus (Kunth) Spreng.]
Muhlenbergia uniseta image
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Gould 1980, FNA 2007
Common Name: fragilegrass Duration: Annual Nativity: Native Lifeform: Graminoid General: Delicate, tufted annual with weak stems 2-30 cm, bases often prostrate or decumbent, strongly branching. Vegetative: Sheaths glabrous or sparsely hirsute; blades 1-7 cm long, 1-2 mm wide, thin, flat; ligules 0.5-1.5 mm, lacerate. Inflorescence: Raceme 2-6 cm on filiform, slightly zig-zag axis, bearing minute basal stumps of peduncles after spikelets fall; spikelets 1.5-2.3 mm, on 1-1.5 mm pedicels; kinked peduncle is slender and fragile, bearing three spikelets on large flattened pedicels; glumes 1-2 mm, fan-shaped, lobes rounded, awns about 0.5 mm; lemmas 2.5-3 mm, central awns 3-8 mm, lateral awns to 1 mm. Ecology: Found in partial shade, often of trees or boulders, in shady moist canyons and rarely along roads from 5,000-7,000 ft (1524-2134 m); flowers August-October. Notes: The minute size along with the fan shaped glumes and the slight reddish tinge help to identify this species. This taxa is undergoing revision. Peterson in 2009 put this species in Muhlenbergia cenchroides, but it alternately has also been noted as Muhlenbergia geminiflora by Peterson and as M. uniseta by Columbus. Tropicos suggests this species is M. cenchroides. Ethnobotany: Unknown Etymology: Aegopogon is from Greek aix, or aigos, for a goat and pogon, a beard, while tenellus is from Latin for delicate or dainty. Synonyms: Aegopogon tenellus, Aegopogon tenellus var. abortivus, Lamarckia tenella Editor: SBuckley, 2010
Muhlenbergia uniseta
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Muhlenbergia uniseta image
Muhlenbergia uniseta image
Muhlenbergia uniseta image
Muhlenbergia uniseta image
Muhlenbergia uniseta image
Muhlenbergia uniseta image
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Muhlenbergia uniseta image
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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