Emilia sonchifolia

(Linnaeus) de Candolle

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

Common names: Lilac tasselflowers
IntroducedIllustrated
Basionym: 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 introduced 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.
... more about "Emilia sonchifolia"
Theodore M. Barkley† +
(Linnaeus) de Candolle +
Cacalia sonchifolia +
Lilac tasselflowers +
Fla. +, Ga. +, S.C. +, Asia +  and also introduced in New World tropics. +
0–100 m +
Disturbed sites, old fields, roadsides +
Flowering probably year round, mostly Oct–Mar. +
in R. Wight, Contr. Bot. India, +
Introduced +  and Illustrated +
Compositae +
Emilia sonchifolia +
species +