Acmella pusilla

(Hooker & Arnott) R. K. Jansen

Syst. Bot. Monogr. 8: 46. 1985.

Introduced
Basionyms: Spilanthes pusilla Hooker & Arnott J. Bot. (Hooker) 3: 317. 1841
Treatment appears in FNA Volume 21. Treatment on page 133. Mentioned on page 132.

Leaves: petioles 2–4 mm; blades lanceolate, mostly 12–40 × 3–10 mm, margins usually sinuate-dentate, rarely entire. Cypselae 1.2–1.6 mm, ciliate or not, tips of cilia recurved; pappi 0 or of 1–2 bristles. 2n = 26, 52.


Phenology: Flowering May–Sep.
Habitat: Disturbed sites
Elevation: 0–10 m

Distribution

V21-324-distribution-map.gif

Introduced; Fla., Ga., N.C., S.C., South America

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Acmella pusilla"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
John L. Strother +
(Hooker & Arnott) R. K. Jansen +
bristlelike +
coroniform +
cuneate +
Spilanthes pusilla +
compound +  and simple +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lanceolate +
3mm;10mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and orange +
hairy +  and glabrous +
strongly compressed ellipsoid +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Fla. +, Ga. +, N.C. +, S.C. +  and South America +
0–10 m +
glabrescent +, sparsely pilose +  and strigillose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed sites +
discoid +  and radiate +
in cymiform , corymbiform , paniculiform , racemiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
less hemispheric;ovoid +
deltate +
entire +  and sinuate-dentate +
toothed +  and entire +
2-carpellate +
persistent +
of 1 +  and 2 bristles +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering May–Sep. +
8 +  and 15 +
unequal +  and subequal +
Syst. Bot. Monogr. +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Introduced +
prostrate +  and erect +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Acmella pusilla +
species +
campanulate +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
perennial +  and annual +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
shrub +  and subshrub +