Bromus hallii

(Hitchc.) Saarela & P.M. Peterson
Common names: Hall's brome
Synonyms: Bromus orcuttianus var. hallii
Treatment appears in FNA Volume 24. Treatment on page 211.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants perennial; not rhizomatous. Culms 90-150 cm, erect; nodes 1-2 (3), pubescent or puberulent; internodes usually puberulent, occasionally glabrous, pilose to densely pubescent below the nodes. Sheaths densely pubescent to pilose, hairs to 1 mm, collars pilose, hairs to 2 mm; auricles absent; ligules 0.5-2.5 mm long, sparsely to densely pubescent, obtuse, erose; blades 7.5-16.5 cm long, 3-12 mm wide, flat, densely pubescent on both surfaces. Panicles 5-16 cm, open; branches erect, ascending and appressed to slightly spreading. Spikelets 25-35 (45) mm, terete to moderately laterally compressed, with 3-7 florets. Glumes sparsely to densely pubescent; lower glumes 5-8 (9) mm, 1 (3) -veined; upper glumes (7) 8-9 mm, 3-veined, sometimes mucronate; lemmas 10-14 mm, elliptic, rounded over the midvein, backs sparsely to densely pubescent, margins pubescent, apices entire; awns 3.5-7 mm, straight, arising less than 1.5 mm below the lemma apices; anthers 3-6 mm. 2n = unknown.

Discussion

Bromus hallii grows in southern California on dry, open or shaded hillsides, rocky slopes, and in montane pine woods, from 1500-2700 m.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Bromus hallii"
membranous +  and scarious +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Rounded (?) +, Obtuse (?) +, Acute (?) +  and Subulate (?) +
Leon E. Pavlickf +
(Hitchc.) Saarela & P.M. Peterson +
1 (?) +  and 3 (?) +
straight +
distinct +
subterminal +  and terminal +
geniculate +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
7.5 cm75 mm <br />0.075 m <br /> (16.5 cm165 mm <br />0.165 m <br />) +
not evident +
cross +, linear +  and narrowly lanceolate +
3mm;12mm +
appressed;slightly spreading +
spikelike +
Hall's brome +
not branching +
90 cm900 mm <br />0.9 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Conn. +, Mass. +, N.H. +, N.J. +, N.Y. +, Calif. +, Del. +, N.C. +, Va. +, W.Va. +, Vt. +, D.C +, Wis. +, Colo. +, Kans. +, Nebr. +, Okla. +, Idaho +, Mont. +, Oreg. +, Wash. +, Wyo. +, Pacific Islands (Hawaii) +, N.Mex. +, Utah +, Maine +, R.I. +, Fla. +, Ala. +, Ark. +, Ariz. +, Ga. +, Iowa +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Mich. +, Minn. +, Mo. +, Miss. +, N.Dak. +, Nev. +, Ohio +, Pa. +, S.Dak. +, Tenn. +, Tex. +, Alaska +, S.C. +, Alta. +, B.C. +, Greenland +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +  and Yukon +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
3 +  and 7 +
terete +  and laterally compressed +
1-9(11)-veined +
always shorter +  and usually shorter +
lanceolate +
subtending +
mucronate +  and acute +
unequal +
uncinate +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
solid +  and hollow +
pilose +  and densely pubescent +
pubescent +  and glabrous +
rounded +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
herbaceous +  and coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
inconspicuous +
lanceolate +
fleshy +  and membranous +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
concealed +  and prominent +
puberulent +  and pubescent +
1 +  and 2 +
2 +  and 1 +
hairy +  and glabrous +
well-developed +
reduced +
5 cm50 mm <br />0.05 m <br /> (16 cm160 mm <br />0.16 m <br />) +
dry +  and fleshy +
densely pubescent +  and pilose +
1 +  and 60 +
not viviparous +
terete +  and moderately laterally compressed +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Bromus orcuttianus var. hallii +
Bromus hallii +
Bromus sect. Bromopsis +
species +
membranous +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
aquatic +  and terrestrial +