Desf., Fl. Atlant. 1:437, t. 3 (1798).
Synonymy: Ranunculus trachycarpus
Common name: Large annual buttercup.
Annual, 20-80 cm high, almost glabrous; roots stout, fibrous; stems branched, rather weak, erect or ascending, with several flowers; basal leaves with long petioles, sheath apex with a few thin hairs; blades of first leaves suborbicular, the next ones ternate, leaflets cuneate-obovate, dentate.
Flowers 8-13 mm diam.; pedicels longer than the opposing leaf; sepals 5, reflexed, 4-5 mm long; petals 5 or sometimes fewer, elliptic to obovate, 4-5 mm long, shortly clawed; nectary scale at the base, dentate; stamens c. 10.
Achenes numerous (usually more than 20), ovateorbicular, c. 2-3 mm diam., compressed, densely tuberculate (tubercles conical-hemispherical, small); beak narrow-triangular, scarcely c. 0.5 mm long, recurved, rising abruptly from the margin.
S.Aust.: EP, MU, SL, KI, SE. W.Aust.; N.S.W.; Vic.; Tas. Native to south-western Europe.
Flowering time: Sept. — Oct.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Not yet available