Piptatherum miliaceum subsp. thomasii

(Duby) Sojak
Treatment appears in FNA Volume 24.

Branches densely whorled; lower nodes with 15-30+ branches, some sterile, bearing highly reduced or no spikelets.

Discussion

Piptatherum miliaceum subsp. thomasii has a native range similar to that of subsp. miliaceum, except that it does not grow in semidesert regions. In the Flora region, it is known only from cultivated specimens.

Selected References

None.

Lower Taxa

None.

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

membranous +  and scarious +
penicillate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
awned +, bifid +, bilobed +  and entire +
not stiff +
hairy +  and glabrous +
lobed +, not lobed +, obtuse +  and acute or acuminate +
Mary E. Barkworth +
(Duby) Sojak +
twisted +  and not branched +
1 (?) +  and 3 (?) +
20 cm200 mm <br />0.2 m <br /> (?) +
straight +
subterminal +  and eccentric +
2 times-geniculate scabrous +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
keeled +  and rounded +
not branching +
extravaginal +
swelling +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not evident +
tapering +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
flexuous +  and straight +
spikelike +
well-developed +
0.3 cm3 mm <br />0.003 m <br /> (?) +
perennial +  and annual +
extravaginal +  and basal +
40 cm400 mm <br />0.4 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
not woody +
Md. +, N.J. +, Utah +, Calif. +, Pa. +, Ariz. +, Idaho +  and Nev. +
0 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
compressed +
1.5mm +  and 2mm +
1-10-veined +
subtending +
acuminate +
subequal +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
membranous +
not spreading +
uncinate +
0.5 cm5 mm <br />0.005 m <br /> (?) +
3 cm30 mm <br />0.03 m <br /> (40 cm400 mm <br />0.4 m <br />) +
solid +  and hollow +
basally concentrated +  and evenly distributed +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
light-brown +  and black +
ovate +, rectangular +  and lanceolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
membranous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
membranous +
inconspicuous +
lanceolate +
fleshy +  and membranous +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
not overlapping +
light-brown +
concealed +  and prominent +
1 +  and 6 +
2 +  and 1 +
pubescent +  and glabrous +
well-developed +
2(3)-veined +
not keeled +
reduced +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
dry +  and fleshy +
spreading;ascending +
not prolonged +
persistent +
smooth to scabrous +
Introduced +
unisexual +  and bisexual +
laterally compressed +  and terete +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Oryzopsis miliacea +
Piptatherum miliaceum subsp. thomasii +
Piptatherum miliaceum +
subspecies +
membranous +
plant +  and cespitose +
aquatic +  and terrestrial +