Ranunculus pachyrrhizus Hook.f.
Perennial up to 4 cm tall; rosettes tufted at tips of a stout branching rhizome which is often exposed on ground surface. Lvs 1-2-ternatifid, fleshy, softly hairy, 1.5-3 cm long. Scapes 1-flowered, hairy. Fls 1.5-2.5 cm diam. Sepals spreading, hairy. Petals 8-15, yellow, linear-obovate; nectaries 1-(3), 2-4 mm from petal base, shallow, naked. Receptacle hairy. Achenes (50)-60-80, turgid, glabrous or sparsely hairy; body c. 1 mm long; beak stout, straight, c. 1 mm long.
S.: Otago (mountains near Lake Wanaka, Pisa Range, Cardrona Range, Old Man Range, Remarkables), Southland (Garvie Mountains).
Endemic.
Peat at tarn edges and in meltwater from summer snow-banks, 1200-2150 m.
Fisher (1965, op. cit.) gives a fuller description and illustration.
