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fringed brome

Habit Plants perennial, 45–120(150) cm tall; loosely cespitose.
Culms

internodes glabrous;

nodes (3)4–7(8), pubescent or the lower culms glabrous.

Leaves

basal sheaths retrorsely pilose, sometimes glabrous; upper sheaths glabrous;

throats glabrous or pilose;

ligules 0.4–1.4 mm;

blades 13–25 cm × 4–10 mm; flat;

lower surface glabrous, sometimes pilose;

upper surface usually pilose, sometimes glabrous.

Inflorescences

10–20 × approximately 12 cm; open, nodding;

branches ascending, spreading, or drooping.

Spikelets

15– 25 mm, elliptic to lanceolate; terete to moderately laterally compressed, with 4–9 florets.

Glumes

glabrous;

lower glumes 5.5– 7.5 mm, 1(3)-veined;

upper glumes 7.1–8.5 mm, 3-veined.

Lemmas

9.5–14 mm, elliptic to lanceolate, rounded over the back; backs glabrous or scabrous; lower 50–67% of margins conspicuously hirsute;

tips obtuse to acute; entire;

lemma awns 2–4(5)mm; straight.

Anthers

1.5–2 mm.

2n

=14.

Bromus racemosus

Bromus ciliatus

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Moist montane meadows, thickets, woodlands, and stream banks. 1000–2000m. BR, BW, Casc, ECas. CA, ID, NV, WA; north to AK, east to Labrador and VA, south to Mexico. Native.

Bromus ciliatus has long-hairy lemma margins like B. laevipes, however, the latter species has 5-veined upper glumes and longer anthers.

Source Flora of Oregon, volume 1, page 370
Barbara Wilson, Richard Brainerd, Nick Otting
Sibling taxa
B. arenarius, B. briziformis, B. catharticus, B. ciliatus, B. commutatus, B. diandrus, B. hordeaceus, B. inermis, B. japonicus, B. laevipes, B. madritensis, B. orcuttianus, B. pacificus, B. rubens, B. secalinus, B. sitchensis, B. squarrosus, B. sterilis, B. suksdorfii, B. tectorum, B. vulgaris
B. arenarius, B. briziformis, B. catharticus, B. commutatus, B. diandrus, B. hordeaceus, B. inermis, B. japonicus, B. laevipes, B. madritensis, B. orcuttianus, B. pacificus, B. rubens, B. secalinus, B. sitchensis, B. squarrosus, B. sterilis, B. suksdorfii, B. tectorum, B. vulgaris
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