Adlumia

Rafinesque ex de Candolle
Syst. Nat. 2: 111. 1821, name conserved.
Etymology: For John Adlum, 1759-1836, a horticulturist born in York, Pa., died in Georgetown, D.C.
Treatment appears in FNA Volume 3.

Vines or vinelike caulescent herbs, biennial, perhaps also annual, from taproots. Stems developing in 2d year, climbing, usually simple. Leaves cauline, compound, petiolate; blade with 3-5 orders of leaflets and lobes; margins entire; surfaces glabrous; distal petiolules and reduced leaflets twining and tendril-like. Inflorescences axillary, cymose-paniculate, multifloral. Flowers bilaterally symmetric about each of 2 perpendicular planes; sepals caducous, peltate with attachment near base; corolla persistent, compressed-urceolate, becoming spongy; outer petals connate except at apex, base saccate, apex with erect or reflexed, ovate to deltate lobe; inner petals similar but with apical lobes connate over stigma; filaments basally connate and adnate to petals; ovary linear or narrowly oblong; style persistent; stigma ± 2-lobed. Capsules dehiscent, 2-valved. Seeds ca. 6, elaiosome absent.

Distribution

e North America, Asia (Korea).

Discussion

Species 2 (1 in the flora).

The Asian members of the genus usually are considered to be a distinct species, Adlumia asiatica Ohwi.

Selected References

None.

Lower Taxa