Flora of New Zealand Series

R. buchananii var. latilobus Allan in T.R.S.N.Z. 65, 1935, 223.

Type locality: "Otago Lake District, in large patches, alt. 5-6000 ft." The "Lake District" of Hooker refers to the area about Lakes Wakatipu, Wanaka and Hawea. Type: K, Hector and Buchanan, 1863, Otago.

Tufted ± pilose herb up to 3 dm. tall, sparingly to much branched. Stock very stout; main roots stout, fleshy, full of milky juice; main stems stout, ± pilose, up to c. 1 dm. long or more. Radical lvs on petioles 5-15 cm. long with stout broad sheaths; lamina ± reniform in outline, 5-15 cm. diam., ternatisect; divisions stalked, ± divided into cuneate segs ± 1 cm. × 5-10 mm., abruptly acute. Cauline lvs similar, subsessile. Infl. of a solitary fl. or 2-4 together. Fls 3-7 cm. diam. Sepals narrow-oblong, villous, us. 5, becoming reflexed, 15 × 3 mm. Petals 15-20 or more, narrow-oblong to narrow-obovate, white, 2 cm. × 5 mm. rounded at apex. Nectary gland small, basal. Fruiting head subglobose, 1-2 cm. diam. Achenes brown, pilose to glabrate, turgid, obliquely obovoid, ± 2 × 1 mm. Style slender, ± 5 mm. long.

DIST.: S. Subalpine rock clefts lat. 44° southwards.