Thysanolaena latifolia

(Roxb. ex Hornem.) Honda
Common names: Asian broomgrass
Treatment appears in FNA Volume 25. Treatment on page 350.

Sheaths mostly glabrous, margins often ciliate distally; collars pubescent; blades 20-65 cm long, 2-7 (10) cm wide, flat, usually glabrous or mostly so on both surfaces, occasionally sparsely pubescent abaxially, adaxial surfaces often pubescent immediately distal to the collar and ligule. Panicles 17-140 cm; branches to 75 cm, often drooping, pulvini pubescent. Spikelets 1.2-2.8 mm, frequently abortive. Lower glumes 0.5-0.9 mm, broadly ovate; upper glumes 0.5-1 mm, broadly elliptic; lower lemmas 1.3-2.4 mm, elliptic-lanceolate, acute to acuminate; upper lemmas 1.2-2.8 mm, lanceolate, acute to acuminate; anthers 0.6-1 mm, yellow; stigmas purple. Caryopses 0.4-0.5 mm. 2n = 24.

Discussion

Thysanolaena latifolia is an important pasture species in Asia. It is grown in the United States as an ornamental plant, recommended for frost-free areas with full sunlight or light shade. It is not known to be established in the Flora region.

The species has been known as Thysanolaena maxima (Roxb.) Kuntze, but Baaijens and Veldkamp (1991) demonstrated that T. latifolia has priority at the species level.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Thysanolaena latifolia"
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
J. Gabriel Sanchez-Ken +
(Roxb. ex Hornem.) Honda +
1 (?) +  and 3 (?) +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
disarticulating +
20 cm200 mm <br />0.2 m <br /> (65 cm650 mm <br />0.65 m <br />) +
pubescent +, mostly +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
2cm;7cm +
spikelike +
nearly spherical +  and broadly ovoid +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
fusoidlike +
Asian broomgrass +
persistent +
ascending +  and erect +
150 cm1,500 mm <br />1.5 m <br /> (400 cm4,000 mm <br />4 m <br />) +
capillary +
pistillate +  and staminate +
sometimes longer +
basal +  and distal +
rudimentary +
round +  and compressed +
reduced +
subtending +
membranous +
papillose-based +
uncinate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
paniculate +  and racemose +
leathery +  and membranous to somewhat +
inconspicuous +
truncate +  and irregularly lobed +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
acute +  and acuminate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
17 cm170 mm <br />0.17 m <br /> (140 cm1,400 mm <br />1.4 m <br />) +
dry +  and fleshy +
not evident +
1 +  and 60 +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
2 (?) +  and 3 (?) +
free +  and fused +
triangular +  and dome--shaped +
Gramineae +
Thysanolaena latifolia +
Thysanolaena +
species +
membranous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
acute +  and acuminate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
plant +  and cespitose +
aquatic +  and terrestrial +