Difference between revisions of "Bromus danthoniae"
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name=Bromus danthoniae | name=Bromus danthoniae | ||
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|authority=Trin. ex C.A. Mey. | |authority=Trin. ex C.A. Mey. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Cindy Roché | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Ont. | |distribution=Ont. | ||
|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/V24/V24_333.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Bromeae | |tribe=Poaceae tribe Bromeae | ||
Latest revision as of 16:23, 11 May 2021
Plants annual. Culms 5-40 cm, erect or ascending. Sheaths glabrous or pubescent; ligules 1.2-2.6 mm, puberulent, obtuse, laciniate; blades 2-15 cm long, 2-5 mm wide, pubescent on both surfaces. Panicles 2-12 cm long, 1-5 cm wide, dense, ovoid, stiffly erect, sometimes racemose; branches shorter than the spikelets, ascending, slightly curved or straight. Spikelets 10-40(45) mm long, 4-10 mm wide, lanceolate to elliptic or oblong, laterally compressed; florets 5-8(10), bases concealed at maturity; rachilla internodes concealed at maturity. Glumes glabrous or pubescent; lower glumes 5-8.5 mm, 3-5-veined, lanceolate; upper glumes 6.5-9.5 mm, 7-9(11)-veined, elliptic; lemmas 8-12(13.5) mm long, 6-7 mm wide, oblanceolate, veins glabrous, scabridulous, or ciliolate, glabrous or pubescent elsewhere, 9-11-veined, rounded over the midvein, margins broadly hyaline, bluntly angled above the middle, not inrolled at maturity, apices subulate to acute or obtuse, toothed, teeth shorter than 1 mm; awns usually 3 on the upper lemmas in each spikelet, arising 2-4 mm below the lemma apices, purple or deep red, central awn 5-25 mm, flattened at the base, divaricate and sometimes twisted at maturity, lateral awns 4-10 mm, erect or reflexed, sometimes absent or much reduced on the lower lemmas; anthers 1-1.8 mm. Caryopses equaling or shorter than the paleas, thin, weakly inrolled or flat. 2n = 14.
Discussion
Bromus danthoniae is native from the western Asia to southern Russia and Tibet. It was collected in 1904 in Ontario; no other North American collections are known.
Selected References
None.