Cotula australis

(Sieber ex Sprengel) Hooker f.

Fl. Nov.-Zel. 1: 128. 1852.

Introduced
Basionym: Anacyclus australis Sieber ex Sprengel Syst. Veg. 3: 497. 1826
Treatment appears in FNA Volume 19. Treatment on page 544.

Annuals, 2–10 (–25+) cm. Stems branched ± throughout, ± strigillose to villous, glabrescent. Leaves petiolate or sessile; blades obovate to spatulate, 2–3-pinnately lobed (ultimate lobes narrowly spatulate to linear), (1–) 2–3 (–6) cm. Involucres 3–4 (–6) mm diam. Phyllaries 13–22+ in 2–3 series, subequal (apices brown). Ray-florets 0 (peripheral pistillate florets 8–80+ in 1–3+ series; corollas 0). Disc corollas ochroleucous to pale-yellow, 0.5–0.8 mm. Cypselae: outer stalked, 1–1.2 mm, ± winged, faces ± papillate; inner sessile, 0.8–1 mm, not winged, not papillate. 2n = 36, 40.


Phenology: Flowering Jan–Sep.
Habitat: Disturbed sites
Elevation: 0–800 m

Distribution

V19-947-distribution-map.gif

Introduced; Ariz., Calif., Fla., Maine, Oreg., Tex., Australia, also in Northern Hemisphere: Mexico (Baja California), South America, Africa

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Cotula australis"
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Linda E. Watson +
(Sieber ex Sprengel) Hooker f. +
decurrent +
Anacyclus australis +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
lobed;obovate;spatulate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
yellow +  and ochroleucous +
winged +  and monomorphic +
obovoid +  and oblong obcompressed or flattened +
fertile +  and bisexual +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
fertile +  and bisexual +
Ariz. +, Calif. +, Fla. +, Maine +, Oreg. +, Tex. +, Australia +, also in Northern Hemisphere: Mexico (Baja California) +, South America +  and Africa +
0–800 m +
more or less strigillose +  and villous +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed sites +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
not winged +  and sessile +
not papillate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
broadly hemispheric;saucer-shaped +
sessile +  and petiolate +
deltate +
entire +  and dentate +
winged +  and stalked +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
2-carpellate +
persistent +
Flowering Jan–Sep. +
13 +  and 22 +
Fl. Nov.-Zel. +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Introduced +
ascending +, decumbent +  and erect +
appendaged +  and truncate +
papillate +
Compositae +
Cotula australis +
species +
ampliate +
cylindric +
toothed +  and entire +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
shrub +  and subshrub +