Greek leucos — white, chrysos — gold, an allusion to the inner involucral bracts which have white or yellowish radiating lamina.
Annual or perennial herbs, hairy. Stems erect or ascending, branched. Leaves along stems, alternate, margins entire, glandular-hairy. Capitula diskoid, terminal, solitary, with stalks. Involucral bracts in many rows, overlapping, unequal, the inner ones clawed, with a radiating coloured lamina. Receptacle flat. Florets bisexual, tubular, yellow. Achenes cylindrical, warty, glabrous. Pappus of feathery or barbed bristles.
Inner involucral bracts with a prominent claw and spreading white or yellowish laminas.
5 from Australia.
Source: (2002). Dahlia. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.