Toggle more/fewer photos
Chatham Island ice plant
Current Threat Status
2012 - At Risk - Naturally Uncommon
Previous Threat Status
2009 - At Risk - Naturally Uncommon
2004 - Range Restricted
2012 - IE, RR
2009 - IE
Disphyma papillatum Chinnock
Vascular - Native
None - was once considered part of the normal variation exhibited by D. australe
Endemic: Chatham Islands: Rekohu (Chatham), Rangiuaria (Pitt), Rangatira (South East), Mangere, Little Mangere, Rabbit, Castle, Forty Fours, Star Keys, Sisters and Western Reef
Abundant on coastal rocks, cliffs and gravels, often in very exposed, inhospitable sites.
Trailing, succulent herb. Stem flattened, 2-angled, glabrous. Leaves 3-angled, acute, tapering to connate base, 4-30 × 5-6 mm; margins papillate. Flowers 20-40 mm diameter. Petals uniformly white, pink, dark blue or purple, in 3-5 rows, 10-30 mm long. Stamens 5-6 mm long; inner filaments hairy at base. Stigmas 5(-6). Capsule valves with widely divergent expanding keels; placental tubercle present, 2-lobed or reduced to a ridge. Seeds yellowish brown to brown, obovoid, distinctly papillate, c.1 mm long.
Distinguished from the other New Zealand species by the papillate rather than smooth, 2-angular rather than terete stems, and distinctly papillate rather than rugose or smooth seeds.
July - May
Main Flower Colour
Red / Pink
Other Flower Colour
Present throughout the year
Easy from rooted pieces and fresh seed. Does best in full sun, within a damp, well drained and fertile soil
Not Threatened: Abundant on coastal cliffs, rock stacks, cobble beaches, on offshore islands, and around petrel burrows in open coastal forest.
2n = 36
References and further reading
Webb, C. J.; Sykes, W. R.; Garnock-Jones, P. J. 1988: Flora of New Zealand. Vol. IV. Naturalised Pteridophytes, Gymnosperms, Dicotyledons. 4. Christchurch, New Zealand, Botany Division, D.S.I.R.
Thorsen, M. J.; Dickinson, K. J. M.; Seddon, P. J. 2009. Seed dispersal systems in the New Zealand flora. Perspectives in Plant Ecology, Evolution and Systematics 11: 285-309
This page last updated on 24 Jul 2014