Polypogon elongatus |
Polypogon australis |
|
---|---|---|
southern beardgrass, streambank rabbitsfoot grass |
Chilean beard grass, Chilean rabbit's-foot grass |
|
Habit | Plants perennial, often flowering the first year. | Plants perennial. |
Culms | to 100 cm, erect or decumbent at the base. |
20-100 cm. |
Sheaths | smooth, glabrous; ligules 4-8 mm, scabridulous, lacerate; blades 10-30 cm long, 4-15 mm wide. |
smooth to scabridulous; ligules 1-3(4) mm, rounded to broadly acute, erose; blades 13-17 cm long, 5-7 mm wide, scabrous. |
Panicles | 10-30 cm, erect or nodding, interrupted, dense; pedicels not developed; stipes 1.5-2.5 mm. |
8-15 cm, lobed or interrupted, usually purplish; pedicels absent or vestigial; stipes 0.3-0.5 mm. |
Glumes | 3-5 mm, hispidulous, tapering from about midlength to the acute apices, apices unlobed, awned, awns 1-3 mm; lemmas about 1.5 mm, awned, awns 1-2 mm, arising from above midlength; paleas 1/2 - 2/3 as long as the lemmas; anthers 0.5-0.7 mm. |
1.5-3 mm, smooth to echinate, margins ciliate, apices acute to truncate, unlobed or lobed, lobes to 0.1 mm, awned, awns (3)4-6 mm, flexuous; lemmas 1-1.3 mm, awned, awns 2-3.5 mm, flexuous; paleas from shorter than to subequal to the lemmas; anthers 0.3-0.5 mm. |
2n | = 28, 56. |
= unknown. |
Polypogon elongatus |
Polypogon australis |
|
Distribution |
AZ; CO; TX |
AZ; CA; NV; WA
|
Discussion | Polypogon elongatus is native from Mexico to Argentina. It now grows at scattered locations in the Flora region, primarily in California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Polypogon australis is native to South America. It has become established in western North America, where it grows alongside ditches and streams. The records from Washington and Oregon are from ballast dumps; it is not known from recent collections in those states. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 24, p. 663. | FNA vol. 24, p. 665. |
Parent taxa | Poaceae > subfam. Pooideae > tribe Poeae > Polypogon | Poaceae > subfam. Pooideae > tribe Poeae > Polypogon |
Sibling taxa | ||
Name authority | Kunth | Brongn. |
Web links |
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