Emilia sonchifolia

(Linnaeus) de Candolle in R. Wight

in R. Wight, Contr. Bot. India, 24. 1834.

Common names: Lilac tasselflowers
IntroducedIllustrated
Basionyms: Cacalia sonchifolia Linnaeus Sp. Pl. 2: 835. 1753
Treatment appears in FNA Volume 20. Treatment on page 606. Mentioned on page 605.

Plants 20–80 cm, glabrous or ± villous. Stems 1, erect or somewhat lax, simple or branched. Leaves mostly in proximal 1/2; usually petiolate; blades ovate to obovate or oblanceolate, mostly 5–12 × 1.5–4.5 cm (distal smaller, bractlike), margins often deeply lobed to lyrate-pinnatifid. Involucres urceolate to campanulate, 9–12 mm, relatively slender, lengths mostly 3–4 times diams. Phyllaries usually 8. Florets 15–30 [–40], surpassing involucres by 0–1 (–2) mm; corollas usually lavender, pinkish, or purplish, rarely reddish, lobes 0.5–0.7 [–1.5] mm; style appendages 0–0.1 mm. 2n = 10.


Phenology: Flowering probably year round, mostly Oct–Mar.
Habitat: Disturbed sites, old fields, roadsides
Elevation: 0–100 m

Distribution

V20-1359-distribution-map.gif

Introduced; Fla., Ga., S.C., Asia, also in New World tropics

Discussion

Emilia sonchifolia is a pantropical weed of Asiatic origin and should be expected as an occasional escape in the flora. D. H. Nicolson (1980) treated the eastern Asian representatives of E. sonchifolia, which have corolla lobes 1.1–1.5 mm, as E. sonchifolia var. javanica (Burman f.) Mattfeld. In the flora, plants of E. sonchifolia have corolla lobes 0.5–0.8 mm and are treated as var. sonchifolia. See Nicolson (p. 398) for discussion of nomenclatural attribution.

Selected References

None.

Lower Taxa

None.

"-4timesdiams" is not declared as a valid unit of measurement for this property.

... more about "Emilia sonchifolia"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
corymbiform +  and cymiform +
indeterminate +  and determinate +
Theodore M. Barkley† +
(Linnaeus) de Candolle in R. Wight +
decurrent +
Cacalia sonchifolia +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
ovate;obovate or oblanceolate +
1.5cm;4.5cm +
winged;nerved;ribbed +
Lilac tasselflowers +
reddish +, purplish +, pinkish +  and lavender +
fusiform-prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
Fla. +, Ga. +, S.C. +, Asia +  and also in New World tropics +
0–100 m +
arachnose +, villous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed sites, old fields, roadsides +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
urceolate;campanulate +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
erect;spreading +
lanceovate +
dentate to pinnatifid +  and entire +
often deeply lobed +  and lyrate-pinnatifid +
2-carpellate +
Flowering probably year round, mostly Oct–Mar. +
mostly linear +  and oblong +
unequal +  and subequal +
in R. Wight, Contr. Bot. India, +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
foveolate +  and smooth +
flat;convex +
exalbuminous +
Introduced +  and Illustrated +
branched +, simple +  and lax +
somewhat +  and erect +
appendaged +  and truncate +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
papillate +
Compositae +
Emilia sonchifolia +
species +
toothed +  and entire +
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +
villous +  and glabrous +