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Florida tasselflower, Fosberg's pualele

Habit Annuals, 20–100 cm, glabrous or sparsely arachnoid-villous proximally.
Stems

1, often somewhat lax, simple or branched.

Leaves

± equally distributed;

sessile and auriculate to winged-petiolate and clasping;

blades oblanceolate to pandurate, mostly 5–10 × 3–5 cm (distal smaller, bractlike), margins entire, toothed, or weakly lobed.

Involucres

campanulate to cylindric, 9–14 mm, relatively thick, lengths 1.5–2(–3) times diams.

Florets

usually 50–60+, surpassing involucres by 2–4 mm;

corollas pinkish, purplish, or reddish (not orange), lobes mostly 1–1.7 mm;

style appendages ca. 0.2 mm.

Phyllaries

usually 8 or 13.

2n

= 20.

Emilia fosbergii

Phenology Flowering probably year round, mostly Oct–Mar.
Habitat Disturbed sites, pinelands, abandoned fields, roadsides
Elevation 0–100 m (0–300 ft)
Distribution
from FNA
FL; LA; TX; Asia [Introduced in North America; also introduced in New World tropics, Mexico, West Indies, Central America, South America]
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Discussion

Emilia fosbergii is a tropical Asian weed that has become established in the flora; it may be expected elsewhere as an occasional escape. It is the more frequently collected Emilia in the flora. Names misapplied to plants of E. fosbergii include E. javanica (Burman f.) C. B. Robinson and E. sagittata Willdenow.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 606.
Parent taxa Asteraceae > tribe Senecioneae > Emilia
Sibling taxa
E. sonchifolia
Name authority Nicolson: Phytologia 32: 34. (1975)
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