Achnatherum lemmonii subsp. lemmonii

Treatment appears in FNA Volume 24. Treatment on page 125.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Sheaths and culms glabrous or pubescent, hairs to 0.2 mm, sometimes varying within a population.

Discussion

Achnatherum lemmonii subsp. lemmonii grows throughout the range shown on the map, on both serpentine and non-serpentine soils.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."prolonged" is not a number.

membranous +  and scarious +
not penicillate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
awned +, bifid +, bilobed +  and entire +
0 cm0 mm <br />0 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Mary E. Barkworth +
(Vasey) Barkworth +
1 (?) +  and 3 (?) +
flexuous +
subterminal +  and eccentric +
usually scabrous +  and scabridulous +
not once-geniculate +
1.6 cm16 mm <br />0.016 m <br /> (3 cm30 mm <br />0.03 m <br />) +
keeled +  and rounded +
folded +  and convolute +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
tomentose +, pubescent +  and glabrous +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
not evident +
involute +, convolute +  and flat +
strongly ascending;appressed +
spikelike +
well-developed +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
pubescent +  and glabrous +
branching +  and not branching +
perennial +  and annual +
15 cm150 mm <br />0.15 m <br /> (90 cm900 mm <br />0.9 m <br />) +
intravaginal +  and basal +
pubescent +  and glabrous +
10 cm100 mm <br />0.1 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
not woody +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Wash. +, B.C. +, Utah +, Calif. +, Oreg. +, Mont. +, Ariz. +, Idaho +  and Nev. +
1/5 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sometimes longer +
compressed +  and fusiform +
1-10-veined +
subtending +
obtuse +, acute +  and acuminate +
subequal +
0.7 cm7 mm <br />0.007 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
membranous +
divergent +  and distributed +
uncinate +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
solid +  and hollow +
basally concentrated +  and evenly distributed +
0 cm0 mm <br />0 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
ovate +, rectangular +  and lanceolate +
coriaceous +
pubescent +  and glabrous +
membranous +
0.1 cm1 mm <br />0.001 m <br /> (?) +
membranous +
inconspicuous +
not lobed +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.9mm +  and 1.1mm +
concealed +  and prominent +
3 +  and 4 +
2 +  and 1 +
pubescent +  and glabrous +
well-developed +
not keeled +
reduced +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
7cm +  and 21cm +
1 cm10 mm <br />0.01 m <br /> (?) +
dry +  and fleshy +
not prolonged +
pubescent +  and glabrous +
1 +  and 60 +
unisexual +  and bisexual +
laterally compressed +  and terete +
1 (?) +  and 3 (?) +
simple +  and compound +
Stipa lemmonii +
Achnatherum lemmonii subsp. lemmonii +
Achnatherum lemmonii +
subspecies +
membranous +
0 cm0 mm <br />0 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
inconspicuous +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
plant +  and cespitose +
aquatic +  and terrestrial +