Agrostis hallii
Agrostis anadyrensis
Hall's bent, Hall's bent grass
Anadyr bent
17-100 cm, erect.
20-50 cm, erect.
mostly cauline or somewhat basally concentrated;
sheaths smooth;
ligules 2.3-7 mm, dorsal surfaces scabrous, apices acute, usually lacerate;
blades 6-20 cm long, 2-5 mm wide, flat.
usually numerous;
ligules 0.6-3.5 mm, scabridulous, rounded, erose, sometimes lacerate, ciliate;
blades to 10 cm long, 3-4 mm wide, flat.
7-22 cm long, 1.5-5.5(7) cm wide, lanceolate to narrowly ovate, more or less open to dense, lowest node with 2-15 branches;
branches scabridulous, ascending to more or less appressed, mostly branching at or above midlength, some branching near the base, lower branches 1-5 cm;
pedicels 0.5-6 mm.
6-20 cm long, 1-4(8) cm wide, lanceolate to ovate, somewhat contracted but not spikelike;
branches erect, slender, scabrous;
pedicels 0.5-8 mm.
lanceolate, yellow-green, often tinged with purple.
lanceolate, greenish purple.
equal to subequal, 2.5-4 mm, 1-veined, scabrous to scabridulous on the midvein, at least distally, sometimes also sparsely scabridulous over the back, acute to acuminate;
callus hairs (0.8)1-2 mm, abundant, conspicuous;
lemmas 2-3 mm, smooth, translucent to opaque, 5-veined, veins prominent at least distally, apices acute, entire or erose, sometimes toothed, teeth to about 0.2 mm, unawned;
paleas absent, or to 0.2 mm and thin;
anthers 3,1.5-2.3 mm.
subequal, 2-3.5 mm, 1-veined, ciliate on the keels, otherwise smooth, acute;
callus hairs less than 76 the length of the lemma;
lemmas 1.6-3 mm, translucent, 5-veined, veins obscure or prominent distally, apices acute, entire, awned from above midlength, awns 1-1.5 mm, geniculate, exserted;
paleas absent;
anthers 3, 0.5-0.8 mm.
1.5-2 mm.
= 42.
= 56.
Agrostis hallii
Agrostis anadyrensis
Agrostis hallii is primarily coastal, growing in open areas of oak and coniferous forests in Oregon and California.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Agrostis anadyrensis grows in sand and gravel shores of rivers and lakes, and in meadows and shrubby valleys in eastern Siberia. It has been reported by Tsvelev (1976) from arctic Russia and southern Alaska. Specimens from Alaska purporting to be A. anadyrensis so far have proven to be A. mertensii (see previous). Agrostis anadyrensis differs from A. mertensii in being more robust, with wider, more abundant basal leaves, larger panicles, and minor differences in the insertion of the awns on the lemmas. In addition, the panicle branches are strongly scabrous, with long acicules throughout their length, contrasting with the smooth to weakly scabrous branches of A. mertensii.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
