×Carpophyma mutabilis Heenan & Sykes

Stems prostrate, obtusely 2-angled, 4–7 mm in diam., smooth, rooting at nodes; internodes up to 50 mm long. Leaves up to 40–60(–100) mm long, ventral side 4–9 mm wide, green, opposite, triquetrous, connate towards base, clasping stem, margins entire or weakly denticulate near apex, tip acute and often mucronate, dorsal keel well developed. Flowers 40–60 mm in diam. Pedicel 20–40 mm long, subterete to slightly angular, smooth. Calyx-tube obconical, smooth, 10–18 mm in diam. below sepals, acutely or subacutely 2-angled; sepals 5–6, 2 distinctly longer, (10–)15–30 mm long, leaf-like, dorsal keel smooth; 3–4 smaller sepals with whitish membranous margins and a reduced fleshy portion. Petals 3–5-seriate, 10–30 mm long, 2.0–2.6 mm wide towards apex, linear to linear–oblanceolate, shiny; initially pale pink or salmon-pink, ageing deep pink and proximally yellow or initially yellow ageing to whitish or very pale pink–yellow; apex obtuse, bifid or unevenly toothed. Stamens 3–5-seriate, numerous; filaments 4–6 mm long, pale yellow to cream, clad in dense moniliform hairs towards base, except in the outermost row. Anthers 1.0–1.5 mm long, yellow, pollen stainability 0%. Styles 6–10, plumose, subulate, stigmatic to base on adaxial side, orange or orange–red on adaxial side. Ovary 7–11 mm deep, mucilage abundant, top flat or shallowly convex. Nectary ring 1.0–1.5 mm high, green, crenulate. Fruit not developed.

[Reproduced from Heenan & Sykes (2010, New Zealand J. Bot. 48: 225–230) with permission from The Royal Society of New Zealand.]