Bromus catharticus var. catharticus

Treatment appears in FNA Volume 24. Treatment on page 199.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants annual or biennial; tufted. Culms 30-120 cm, erect or decumbent. Sheaths usually densely, often retrorsely, hairy, hairs sometimes confined to the throat; ligules 1-4 mm, glabrous or pilose, erose; blades 4-26 cm long, 3-10 mm wide, glabrous or hairy on both surfaces. Panicles 9-28 cm, open, erect or nodding; lower branches 1-4 per node, spreading or ascending, with 1-5 spikelets. Spikelets 20-30 mm, with 6-12 florets. Lower glumes 5-7-veined; upper glumes 9-13 mm, (7) 9 (11) -veined; lemmas 11-20 mm, glabrous or scabrous, sometimes pubescent distally, (9) 11-13-veined; awns absent or to 3.5 mm; anthers about 0.5 mm in cleistogamous florets, 2-4 mm in chasmogamous florets. 2n = 42.

Discussion

Bromus catharticus var. catharticus is native to South America. It has been widely introduced in the flora region as a forage crop and is now established, particularly in the southern half of the United States. It usually grows on disturbed soils.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

membranous +  and scarious +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
with acute teeth +  and entire +
Toothed (?) +  and Entire (?) +
Leon E. Pavlickf +
divaricate +
1 (?) +  and 3 (?) +
straight +
distinct +
subterminal +  and terminal +
0-3.5 mm +
geniculate +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
4 cm40 mm <br />0.04 m <br /> (26 cm260 mm <br />0.26 m <br />) +
not evident +
hairy +  and glabrous +
cross +, linear +  and narrowly lanceolate +
3mm;10mm +
drooping;reflexed;usually ascending;spreading +
spikelike +
not branching +
30 cm300 mm <br />0.3 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
decumbent +  and erect +
30 cm300 mm <br />0.3 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
not woody +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
D.C. +, Kans. +, N.Dak. +, Okla. +, Pacific Islands (Hawaii) +, Fla. +, N.J. +, N.Mex. +, Tex. +, La. +, Nebr. +, Tenn. +, N.C. +, S.C. +, Pa. +, N.Y. +, Nev. +, Va. +, Alta. +, Nfld. and Labr. (Nfld.) +, Ont. +, Colo. +, Calif. +, Ala. +, Ark. +, Ill. +, Ga. +, Iowa +, Ariz. +, Md. +, Ohio +, Utah +, Mo. +, Miss. +, Ky. +, Oreg. +  and S.Dak. +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
6 +  and 12 +
chasmogamous +  and cleistogamous +
terete +  and laterally compressed +
1-9(11)-veined +
always shorter +  and usually shorter +
lanceolate +
subtending +
pubescent +, glabrous +, scabrous +  and smooth +
mucronate +  and acute +
unequal +
uncinate +
solid +  and hollow +
(9)11-13-veined +
pubescent +, scabrous +  and glabrous +
keeled +, compressed +  and lanceolate +
1.1 cm11 mm <br />0.011 m <br /> (2 cm20 mm <br />0.02 m <br />) +
herbaceous +  and coriaceous +
pilose +  and glabrous +
lacerate +  and obtuse +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +
inconspicuous +
lanceolate +
fleshy +  and membranous +
ascending +  and spreading +
10 cm100 mm <br />0.1 m <br /> (?) +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
purplish +, whitish +  and hyaline +
conspicuous +
concealed +  and prominent +
2 +  and 1 +
hairy +  and glabrous +
well-developed +
reduced +
nodding +  and erect +
9 cm90 mm <br />0.09 m <br /> (28 cm280 mm <br />0.28 m <br />) +
dry +  and fleshy +
Introduced +
overlapping +, not crowded +  and distributed +
not viviparous +
compressed +, elliptic +  and lanceolate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Ceratochloa unioloides +, Bromus willdenowii +  and Bromus unioloides +
Bromus catharticus var. catharticus +
Bromus catharticus +
variety +
membranous +
1 cm10 mm <br />0.01 m <br /> (?) +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
biennial +  and annual +
aquatic +  and terrestrial +