The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

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
from FNA
AZ; CO; TX
[BONAP county map]
from FNA
AZ; CA; NV; WA
[WildflowerSearch map]
[BONAP county map]
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
P. australis, P. fugax, P. imberbis, P. interruptus, P. maritimus, P. monspeliensis, P. viridis
P. elongatus, P. fugax, P. imberbis, P. interruptus, P. maritimus, P. monspeliensis, P. viridis
Name authority Kunth Brongn.
Web links