Difference between revisions of "Bromus pumpellianus subsp. dicksonii"
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| − | |discussion=<p>Bromus pumpellianus subsp. dicksonii grows in shallow, rocky soils of river banks and bluffs in the Yukon River drainage of Alaska. Apart from the more restricted distribution, it is not clear how this subspecies differs from the introduced B. riparius.</p> | + | |discussion=<p><i>Bromus pumpellianus </i>subsp.<i> dicksonii</i> grows in shallow, rocky soils of river banks and bluffs in the Yukon River drainage of Alaska. Apart from the more restricted distribution, it is not clear how this subspecies differs from the introduced <i>B. riparius</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Bromus pumpellianus subsp. dicksonii | name=Bromus pumpellianus subsp. dicksonii | ||
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|authority=W. W. Mitch. & Wilton | |authority=W. W. Mitch. & Wilton | ||
|rank=subspecies | |rank=subspecies | ||
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|family=Poaceae | |family=Poaceae | ||
|illustrator=Cindy Roché | |illustrator=Cindy Roché | ||
| + | |illustration copyright=Utah State University | ||
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V24/V24_288.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Bromeae | |tribe=Poaceae tribe Bromeae | ||
Revision as of 20:19, 16 December 2019
Plants cespitose, sometimes shortly rhizomatous. Culms 65-135 cm, ascending, often geniculate; nodes 3-7, glabrous or pubescent; internodes glabrous. Sheaths glabrous or hairy; auricles sometimes present; ligules 0.5-4 mm; blades 7-30 cm long, 2.5-8.5 mm wide, glabrous or hairy on both surfaces, sometimes only the adaxial surface hairy. Panicles 10-24 cm, usually open, nodding to partially erect; branches spreading to drooping. Spikelets 16-32(45) mm. Glumes glabrous or hairy; lower glumes 5-10 mm, 1(3)-veined; upper glumes 7.5-13 mm, 3-veined; lemmas 9-16 mm, sparsely to densely hairy throughout or along the marginal vein and keel; awns 2.5-7.5 mm; anthers (3.5)4-6(6.8) mm. 2n = 28.
Discussion
Bromus pumpellianus subsp. dicksonii grows in shallow, rocky soils of river banks and bluffs in the Yukon River drainage of Alaska. Apart from the more restricted distribution, it is not clear how this subspecies differs from the introduced B. riparius.
Selected References
None.