Soliva anthemifolia

(Jussieu) Sweet

Hort. Brit., 243. 1826.

Common names: Button burrweed
Basionym: Gymnostyles anthemifolia Jussieu Ann. Mus. Natl. Hist. Nat. 4: 262, plate 61, fig. 1. 1804
Synonyms: Soliva mutisii Kunth
Treatment appears in FNA Volume 19. Treatment on page 546.

Plants mostly 3–15(–30+) cm (high or across), ± villous, glabrescent (sometimes stoloniferous, ± mat-forming). Leaves mostly basal; blades ± obovate to spatulate, 3–8(–15) cm, 2–3-pinnati-palmately lobed. Heads mostly clustered in leaf axils (at ground level), rarely scattered along stems. Involucres 4–8+ mm diam. Pistillate florets (20–)50–100+ in 1–8+ series. Disc florets 2–4+; corollas 1.5–2 mm. Cypselae: bodies oblanceolate to cuneate-oblong, 1.5–2+ mm, wings transversely rugulose or ribbed on proximal 2/3, shoulders not spinose laterally, faces distally villous to pilose, sometimes glabrescent; pappi 0 (persistent stylar sheaths indurate, spinelike, 1.5–3 mm, usually inflexed). 2n = 118 (Punjab).

Phenology: Flowering Mar–May(–Aug).
Habitat: Disturbed sites
Elevation: 10–100+ m



Introduced; Ark., Fla., La., Tex., South America, introduced also in Mexico, Asia, Australia.


Selected References


Lower Taxa