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Montana Field Guide

Montana Field Guides

Yellow Bluestem - Bothriochloa ischaemum
Other Names:  King Ranch Bluestem, King Ranch Beardgrass, Andropogon ischaemum

Non-native Species

Global Rank: G5
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

External Links






 
General Description
Bunchgrass. Stems 6–10 dm, leaf sheaths not keeled. Leaves: blades 1–3 mm wide; ligule 0.5–1.5 mm long with a fringe of hairs. Inflorescence with numerous (2 to 8) racemes or spikes, each about 3–7 cm long, terminating the main stem in an apparently digitate arrangement. Spikelets: rachis and pedicels silky hairy along margins; sessile spikelets 3–4.5 mm long, glumes purplish to greenish, acute. Lemmas: fertile lemma with an awn 9–17 mm long; pedicellate spikelet about as large as the sessile spikelet (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Collected in Lake County Introduced in southern U.S (Lavin in Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat

References
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Citation for data on this website:
Yellow Bluestem — Bothriochloa ischaemum.  Montana Field Guide.  .  Retrieved on , from