Tribolium obliterum

(Hemsley) Renvoize
Treatment appears in FNA Volume 25. Treatment on page 313.

Plants perennial; usually cespitose, sometimes stoloniferous, stolons to 30 cm. Culms 12-40 cm, decumbent or erect, branching intravaginal. Sheaths mostly glabrous, ciliate distally; ligules about 0.2 mm, membranous, ciliolate; blades 1-8 cm long, 0.5-1 mm wide. Inflorescences terminal, panicles, 1-5 cm long, 5-15 mm wide, obovate or cylindrical, with 10-40 spikelets; branches scabridulous. Spikelets 3.5-4.5 mm, with 5-10 florets. Glumes 2.5-3.5 mm, longer than the basal lemmas but exceeded by the distal florets, 5-veined, glabrous or scabridulous over the veins, acute; lemmas 2-3.5 mm, with submarginal tufts of hairs in the lower 1/2, hairs acute, 0.2-0.3 mm, lemma apices acute to acuminate; paleas 1.5-2 mm, glabrous between the keels, sometimes with tufts of hairs on the margins; anthers 0.3-0.5 mm, pale-yellow. Caryopses obovate, 0.7-1 mm long, 0.5-0.7 mm wide, planoconvex to concavo-convex, pale-brown, smooth; embryos 0.4-0.5 mm; hila 0.1 mm. 2n = 24, 36.

Discussion

Tribolium obliterum is native to Cape Province, South Africa, where it usually grows in gravelly, well-drained soils at elevations below 600 m. It has been introduced into Australia and St. Helena and was recently discovered in a roadside ditch near Fort Ord, Monterey County, California. It appears to be naturalized there.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Tribolium obliterum"
pale-yellow +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Gerrit Davidse +
(Hemsley) Renvoize +
1 (?) +  and 3 (?) +
geniculate +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
not pseudopetiolate +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
villous +  and glabrous +
rolled +  and flat +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
scabridulous +
spikelike +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
planoconvex +  and concavo-convex +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
perennial +  and annual +
erect +  and decumbent +
intravaginal +
12 cm120 mm <br />0.12 m <br /> (40 cm400 mm <br />0.4 m <br />) +
woody +  and herbaceous +
1/3 +  and 1/2 +
small +  and large +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
capillary +
sometimes longer +
5 +  and 10 +
compressed +
acuminate +  and acute +
subtending +
exceeded by the florets +  and exceeding +
scabridulous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
papillose-based +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (?) +
spicate +  and ebracteate +
racemose +  and paniculate +
solid +  and hollow +
acute +  and acuminate +
with non-uncinate hairs +  and glabrous +
acute +  and long-acuminate +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
firmly membranous +  and coriaceous +
0.2 cm2 mm <br />0.002 m <br /> (?) +
membranous +
setaceous +
inconspicuous +
with bristles +  and glabrous +
obtriangular +
extended +
concealed +  and prominent +
2 +  and 1 +
well-developed +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1cm +  and 5cm +
cylindrical +  and obovate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
rugulose +  and smooth +
dry +  and fleshy +
10 +  and 40 +
sterile +, bisexual +  and unisexual +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
1 +  and 3 +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
2 (?) +  and 3 (?) +
Gramineae +
Tribolium obliterum +
Tribolium +
species +
long-ciliate +  and glabrous +
membranous +
plant +  and cespitose +
aquatic +  and terrestrial +