Melville, Kew Bull. 10:210, figs 14:1-13 & 16:2 (1955).
Synonymy: Not Applicable
Common name: Large river-buttercup.
Flowering stems slender, erect, with 2-4 flowers, more or less pilose under the flowers and glabrescent below; flowers 1.5-2 cm diam.; sepals 5 or 6, oblong to ovate or obovate, obtuse, more or less hooded, more or less shortly hispid on the back, rarely glabrous; petals 5-9, elliptic to oblanceolate, 7-12 mm long, obtuse to almost acute, narrowed near the base into a very short claw, the basal 3 nerves forked, sometimes repeatedly, in the lower half; nectary near the base, its semilunate glandular region in a short pocket surmounted by a short truncate lobe; stamens c. 15-40; carpels c. 20-50.
Mature achenes with semicordate to broadly subcuneate body, c. 2 mm long, stylar beak slender, erect to reflexed, about a half to two-thirds as long, lateral faces with an undulate warty surface and a rounded irregular marginal ridge, dorsal surface broad, flattened and with an irregular warty surface; torus with a few long hairs between the achenes, glabrous (sometimes with an occasional hair) in the staminal zone.
Image source: fig 197f in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).|
S.Aust.: MU, SL, SE. Qld; N.S.W.; Vic.
Flowering time: Dec. — Jan.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Not yet available