Eremopoa altaica

(Trin.) Roshev.
Common names: Altai grass
Treatment appears in FNA Volume 24. Treatment on page 619.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Culms (5) 10-45 cm, solitary or tufted, erect, glabrous. Leaves cauline; sheaths closed for about 1/10 their length, glabrous; ligules 1-4 mm, glabrous; blades 1-10 cm long, 0.5-4 mm wide, flat, usually glabrous, sometimes scabrous. Panicles (3) 6-16 (20) cm long, 1-6 cm wide, diffuse; branches 2-10 cm, whorled and strongly divergent, spikelets confined to the distal portion. Spikelets 2.8-6.2 mm, pedicellate, with (1) 2-3 (4) florets. Glumes lanceolate, glabrous, acute to acuminate; lower glumes 0.9-1.5 (2) mm; upper glumes 1.5-2.5 mm; lemmas 2.5-4 mm, narrowly lanceolate, glabrous or with a few silky hairs on the lower keel, 5-veined, apices entire, acute to acuminate; paleas 2-3 mm, 2-keeled, glabrous; anthers 0.3-1 mm. Caryopses 1.9-2.6 mm. 2n = 14, 28, 42.

Discussion

Eremopoa altaica is native to the high deserts and mountain steppes of Asia, from Turkey through Afghanistan and Pakistan to the Altai region, the Himalayas, and western China. It was once found in railway yards and roadsides at Brandon, Manitoba (Stevenson 1965), but misidentified as Eremopoa persica (Trin.) Roshev. Although the population persisted for several years, recent efforts to relocate it haved failed.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Eremopoa altaica"
42 +, 28 +  and 14 +
membranous +  and scarious +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
acute +  and acuminate +
Stephen J. Darbyshire +
(Trin.) Roshev. +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
keeled +  and rounded +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
not evident +
convolute +  and flat +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
divergent +  and whorled +
spikelike +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Altai grass +
not branching +
tufted +  and solitary +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
not woody +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
2 +  and 3 +
compressed +
reduced +
shorter or longer +
subtending +
acute +  and acuminate +
unequal +
subequal +
uncinate +
with a few silky hairs +  and glabrous +
lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
inconspicuous +
lanceolate +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
6cm +  and 16cm +
spikelike +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
3 cm30 mm <br />0.03 m <br /> (?) +
0mm +  and 1mm +
dry +  and fleshy +
puberulent +  and scabrous +
terete +  and slightly laterally compressed +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Eremopoa altaica +
Eremopoa +
species +
membranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +