Calamagrostis stricta subsp. stricta

Common names: Calamagrostide dressee
Synonyms: Calamagrostis neglecta var. tnicrantha Calamagrostis holmii
Treatment appears in FNA Volume 24. Treatment on page 730.

Plants rarely with sterile culms. Culms (10) 35-90 (100) cm, usually smooth, sometimes slightly scabrous beneath the panicles. Sheaths and collars smooth; ligules (0.5) 1-3.5 (4) mm; blades (9) 13-25 cm long, (1) 1.5-2.5 (3) mm wide, flat or often involute. Panicles (2) 8-10 (13) cm long, (0.7) 1-2 (2.5) cm wide, sometimes interrupted, purple-tinged; branches (1.4) 2-2.5 (4) cm, spikelet-bearing to below midlength, sometimes to the base. Spikelets 2-2.5 (3) mm; rachilla prolongations 0.5-1 mm. Glumes keeled; callus hairs (1) 1.5-2 (3) mm, (0.5) 0.7-0.8 (1) times as long as the lemmas; lemmas 2-3 mm, 0.1-1.5 mm shorter than the glumes; awns 1.5-2.5 mm, attached to the lower 1/10-1/2 of the lemmas, rarely slender, usually straight, sometimes bent; anthers (1.1) 1.2-1.4 (1.7) mm, usually fertile and well filled with pollen, dehiscent. 2n = 28, 42, 56, +70.

Discussion

A circumboreal taxon, Calamagrostis stricta subsp. stricta favors moist meadows and fens, occurring less frequently in marshes and bogs, and sometimes grows near sand dunes. It is usually associated with fine-textured substrates. In the Flora region, its range extends from Alaska to Newfoundland and Labrador and Greenland, and south to California, Utah, North Dakota, Minnesota, New Hampshire, and New York. In Europe, it extends from 50° N latitude to Switzerland and the southern Caucasus.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

70 +, 56 +, 42 +  and 28 +
membranous +  and scarious +
1.1 cm11 mm <br />0.011 m <br /> (?) +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
Kendrick L. Marr +, Richard J. Hebda +  and Craig W. Greenef +
(Timm) Koeler +
1 (?) +  and 3 (?) +
straight +
attached +
indistinct +
1/10 +  and 1/2 +
slender +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
13 cm130 mm <br />0.13 m <br /> (25 cm250 mm <br />0.25 m <br />) +
not evident +
involute +  and flat +
1.5mm;2.5mm +
1.4 cm14 mm <br />0.014 m <br /> (?) +
appressed;more or less drooping +
spikelike +
(0.5)0.7-0.8(1) times as long as the lemmas +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Calamagrostide dressee +
ascending +  and erect +
35 cm350 mm <br />0.35 m <br /> (90 cm900 mm <br />0.9 m <br />) +
not woody +
Wash. +, Maine +, Wis. +, W.Va. +, Kans. +, N.Dak. +, Nebr. +, S.Dak. +, Wyo. +, N.H. +, N.J. +, N.Mex. +, Utah +, Mich. +, N.Y. +, Calif. +, Nev. +, Alaska +, Colo. +, Idaho +, Oreg. +, Vt. +, Ill. +, Ind. +, Iowa +, Ariz. +, Conn. +, Alta. +, B.C. +, Greenland +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Nunavut +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Mass. +, Ohio +, Mo. +, Minn. +, Mont. +  and Pa. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +  and bisexual +
compressed +
reduced +
subtending +
subequal +
membranous +
distinguishable +
sparse +  and abundant +
uncinate +
slender +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
lanceolate +  and ovate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
lacerate +, truncate +  and obtuse +
0.1 cm1 mm <br />0.001 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
membranous +
inconspicuous +
lanceolate +
exserted +  and midpoint +
distinguishable +
concealed +  and prominent +
1 +  and 3 +
2 +  and 1 +
hairy +  and glabrous +
2-keeled +
purple-tinged +
8cm +  and 10cm +
spikelike +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
dry +  and fleshy +
1 +  and 60 +
compressed +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Calamagrostis neglecta var. tnicrantha +  and Calamagrostis holmii +
Calamagrostis stricta subsp. stricta +
Calamagrostis stricta +
subspecies +
membranous +
parallel +  and converging +
prominent +  and obscure +
aquatic +  and terrestrial +
1mm +  and 1.5mm +