All Floras      Advanced Search
FNA Vol. 20 Page 542, 608 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 20 | Asteraceae

221. Delairea Lemaire, Ann. Sci. Nat., Bot., sér. 3. 1: 379. 1844.

[For "Dom. Delaire," who sent a specimen to Lemaire from a garden in the Orléans district of France]

Theodore M. Barkley†

Vines, to 600+ cm (perennating bases unknown; herbage glabrous). Stems usually 1, scrambling and twining (branched). Leaves cauline; alternate; petiolate; blades palmately nerved, polygonal to ± orbiculate (bases often cordate), margins dentate, faces glabrous. Heads discoid, in corymbiform arrays (terminal or from axils of distal leaves). Calyculi of 1–4(–5) bractlets. Involucres cylindric to weakly turbinate, 2–4 mm diam. Phyllaries persistent, (7–)8+ in 1–2 series, erect, distinct (margins interlocking), lance-linear, ± equal, margins scarious (apices green or yellowish green). Receptacles convex, ± foveolate (socket margins often membranous), epaleate. Ray florets 0. Disc florets 8–25, bisexual, fertile; corollas pale yellow, tubes shorter than campanulate to funnelform throats, lobes 5, recurved, lance-deltate to lanceolate; style branches stigmatic in 2 lines, apices ± truncate (appendages essentially 0). Cypselae ± prismatic, 5-angled, glabrous; pappi readily falling or fragile, of 40–60(–100+), white, barbellulate bristles. x = 10.

Species 1: introduced; South Africa; introduced, Australia.

Lower Taxon


 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |