Lamarckia aurea

(L.) Moench
Common names: Goldentop
Treatment appears in FNA Volume 24. Treatment on page 484.

Culms (5) 10-40 cm. Ligules 3-10 mm; blades 2.5-11 (20) cm long, 2.5-7.5 mm wide. Panicles 2-8 cm long, 0.9-3.2 cm wide; branches 1-2 cm, with a few scattered, whitish hairs. Fertile spikelets 2.6-4.2 mm; lower rachilla internodes about 1 mm, glabrous; upper rachilla internodes 1.4-2.2 (2.6) mm, puberulent or glabrous, sometimes scabrous; glumes 2.6-4.2 mm, bisexual florets 2.4-3 mm, minutely bifid, teeth shorter than 0.2 mm, apices awned, awns 5-7.2 mm; anthers 0.4-0.7 mm; rudimentary florets 0.4-0.6 mm, awns 4-5 (7) mm. Sterile spikelets 6-9 mm; lemmas 1-2 mm. Caryopses 1-2 mm. 2n = 14.

Distribution

Calif., Ariz., Pacific Islands (Hawaii), Tex.

Discussion

Lamarckia aurea grows on open ground, rocky hillsides, and in sandy soil, at elevations from sea level to 700 m. Within the Flora region, it is known only from the southwest. It is an attractive, but rather weedy species.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Lamarckia aurea"
membranous +  and scarious +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Lynn G. Clark +
(L.) Moench +
1 (?) +  and 3 (?) +
7 cm70 mm <br />0.07 m <br /> (?) +
straight +
basal +  and terminal +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
2.5 cm25 mm <br />0.025 m <br /> (11 cm110 mm <br />0.11 m <br />) +
not evident +
cross +, linear +  and narrowly lanceolate +
2.5mm;7.5mm +
spikelike +
Goldentop +
not branching +
decumbent +  and erect +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
not woody +
Calif. +, Ariz. +, Pacific Islands (Hawaii) +  and Tex. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
rudimentary +
5 +  and 10 +
compressed +
reduced +
0.4mm +  and 0.6mm +
shorter or longer +
subtending +
acuminate +
unequal +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
uncinate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
membranous +
inconspicuous +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
subequal +
2cm +  and 8cm +
spikelike +
0.9 cm9 mm <br />0.009 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
dry +  and fleshy +
glabrous +  and puberulent +
bent +  and capillary +
1 +  and 60 +
sterile +  and fertile +
compressed +  and terete to somewhat +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Lamarckia aurea +
Lamarckia +
species +
membranous +
0.2 cm2 mm <br />0.002 m <br /> (?) +
parallel +  and converging +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +