Agrostis nebulosa

Boiss. & Reut.
Common names: Cloud grass
Treatment appears in FNA Volume 24. Treatment on page 661.
Please click on the illustration for a higher resolution version.
Illustrator: Sandy Long

Copyright: Utah State University

Plants annual. Culms 10-75 cm, erect or geniculate, with 2-7 nodes. Leaves mostly cauline; sheaths scabrous; ligules 1-6 mm, dorsal surfaces scabrid¬ulous, apices acute to rounded, erose to lacerate; blades 5-15 cm long, 1-4 mm wide, flat. Panicles 3-30 cm long, (2) 5-20 cm wide, oblong to ovate, diffuse, usually over 1/2 the length of the culm, lowest node with (2) 3-18 branches; branches scabrous, erect to spreading, lower branches 4-15 cm; pedicels (2.5) 4-15 mm, much longer than the spikelets. Spikelets lanceolate, usually purplish, sometimes green to yellowish green. Glumes subequal, 1.3-2.1 mm, 1-veined, sparsely aculeolate on the veins, obtuse; calluses glabrous; lemmas 0.5-0.8 mm, transparent, thin, veins scarcely visible, smooth and glabrous or rarely hairy, apices truncate to rounded or acute, toothed or erose, usually unawned, rarely awned from near the base; paleas 0.4-0.7 mm, about as long as the lemmas and of similar texture; anthers 3,1-1.4 mm. Caryopses 0.6-0.8 mm. 2n = 14.

Discussion

Agrostis nebulosa is native to Spain and Portugal. It is cultivated as an ornamental and for dried flower arrangements, but occasional escapes have been found on roadsides, ditches, and in fields in widely scattered locations in the Flora region.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Agrostis nebulosa"
membranous +  and scarious +
not penicillate +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
M.J. Harvey +
Boiss. & Reut. +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
geniculate +
rounded +  and keeled +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
not evident +
scabridulous +
cross +, linear +  and narrowly lanceolate +
1mm;4mm +
erect;spreading +
spikelike +
Cloud grass +
not branching +
geniculate +
10 cm100 mm <br />0.1 m <br /> (75 cm750 mm <br />0.75 m <br />) +
not woody +
Conn. +, N.J. +, N.Y. +, N.Mex. +, Wash. +, Va. +, W.Va. +, Del. +, D.C +, Wis. +, Ariz. +, Mont. +, Oreg. +, Wyo. +, Pacific Islands (Hawaii) +, Md. +, Mass. +, Maine +, N.H. +, R.I. +, Vt. +, Fla. +, Tex. +, La. +, Utah +, Puerto Rico +, N.Dak. +, Nebr. +, Tenn. +, N.C. +, S.C. +, Pa. +, Okla. +, Calif. +, Nev. +, Colo. +, Miss. +, Alaska +, Ala. +, Kans. +, S.Dak. +, Ind. +, Ark. +, Ill. +, Ga. +, Iowa +, Ohio +, Idaho +, Alta. +, B.C. +, Greenland +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Mo. +, Minn. +, Mich. +  and Ky. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +  and bisexual +
compressed +
reduced +
(1)1.3-2(4) times longer than +
subtending +
subequal +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
uncinate +
diffuse +  and dense +
transparent +
pubescent +  and glabrous +
warty-tuberculate +  and scabridulous +
lanceolate +  and ovate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
membranous +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
inconspicuous +
lanceolate +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
concealed +  and prominent +
2 +  and 7 +
2 +  and 1 +
well-developed +
2-keeled +
minute +  and subequal +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
3cm +  and 30cm +
oblong +  and ovate +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (?) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
dry +  and fleshy +
not prolonged +
hairy +  and glabrous +
scabrous +  and scabridulous +
green +  and yellowish green +
1 +  and 60 +
lanceolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Agrostis nebulosa +
Agrostis +
species +
membranous +
2 +  and 5 +
not convergent +
hairy +  and glabrous +
scabrous +  and scabridulous +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +