Delairea

Lemaire

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

Etymology: For “Dom. Delaire,” who sent a specimen to Lemaire from a garden in the Orléans district of France
Treatment appears in FNA Volume 20. Treatment on page 608. Mentioned on page 542.
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.

Distribution

South Africa, introduced, Australia.

Discussion

Species 1.

References

None.

Lower Taxa