Sphagneticola trilobata
Mem. New York Bot. Gard. 87: 114. 1996.
IntroducedIllustrated
Basionym: Silphium trilobatum Linnaeus Syst. Nat. ed. 10, 2: 1233. 1759 (as trilobatu)
Synonyms: Wedelia trilobata (Linnaeus) Hitchcock
Leaf blades 5–18 × 1–5+ cm. Ray laminae 6–15 mm. Disc corollas 3.5–6 mm. Cypselae 3–5 mm. 2n = ca. 40, ca. 50–54, 50–58, 56, ca. 56, 57, and 60.
Phenology: Flowering nearly year round.
Habitat: Ruderal, wet places
Elevation: 0–10 m
Distribution
Introduced; Fla., Mexico, West Indies, Bermuda, Central America, South America, probably introduced in Asia, Indian Ocean Islands, Pacific Islands, Australia.
Discussion
Sphagneticola trilobata is probably native to subtropics and tropics of the New World and probably introduced in Old World. It is increasingly cultivated and is to be expected as escaped or persisting in warm to hot, sandy spots anywhere in the flora area. Report of it from Louisiana has not been confirmed.
Selected References
None.
Lower Taxa
None.