Oxalis articulata Savigny

Clump-forming, hairy perennial; rhizomes short, thick, fleshy, sometimes with short offsets, rough from numerous lf base scars. Lvs 3-foliolate, in basal rosettes. Petiole (3)–7–30 cm long, hairy or nearly glabrous; stipular wing inconspicuous, membranous, hairy. Lamina of leaflets often unequal, sessile, usually 8–35–(55) × 15–(60) mm, broadly obcordate with narrow sinus to ⅓ lamina, with appressed hairs above and below, with basal tuft of hairs; calli orange and forming marginal band; lobes 2, rounded. Infl. to c. 35 cm tall, glabrate, a terminal cyme or panicle of (4)–7–35 fls; pedicels ± deflexed at first, later erect, very variable in length, with antrorse hairs. Bracts at base of pedicels 2–2.5 mm long, lanceolate to ovate, with 2 elongated orange calli. Sepals 3–5 mm long, ovate-elliptic or elliptic, with appressed hairs; calli 2, orange, terminal. Petals 9–16 mm long, oblique-obovate to oblong, usually rose above with darker veins and paler pink with band of appressed hairs outside, rarely white. Stamens in 2 whorls; filaments hairy, dilated and sometimes toothed in lower part, those of longest whorl 2–3 mm long. Styles usually much > longer stamen whorl at anthesis (if petals white, then much < longer stamen whorl), densely hairy. Capsule not seen.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

Flowering: Jul.–May.