Bromus sect. Genea

Dumort.
Treatment appears in FNA Volume 24. Treatment on page 224.

Plants annual. Spikelets with parallel or diverging sides in outline, terete to moderately laterally compressed, with 4-11 florets. Lower glumes 1-3-veined; upper glumes 3-5-veined; lemmas lanceolate to linear-lanceolate, rounded over the midvein, apices acuminate, teeth 0.8-5 mm; awns straight or arcuate, arising 1.5 mm or more below the lemma apices.

Discussion

Bromus sect. Genea is native to Europe and northern Africa; five of its six species are established in the Flora region.

Selected References

None.

Key

1 Lemmas 20-35 mm long Bromus diandrus
1 Lemmas 9-20 mm long. > 2
2 Spikelets usually shorter than the panicle branches; panicle branches ascending to spreading or drooping. > 3
3 Lemmas 14-20 mm long; panicles with spreading, ascending, or drooping branches, rarely with any branches with more than 3 spikelets Bromus sterilis
3 Lemmas 9-12 mm long; panicles with drooping branches, often with 1 or more branches with 4-8 spikelets Bromus tectorum
2 Spikelets longer than the panicle branches; panicle branches ascending to spreading, never drooping. > 4
4 Some panicle branches 1-3+ cm long, most branches visible Bromus madritensis
4 Panicle branches 0.1-1 cm long, usually not readily visible Bromus rubens
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Leon E. Pavlickf +
Dumort. +
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Gramineae +
Bromus sect. Genea +
section +