T.E.R:R.A.I.N - Taranaki Educational Resource: Research, Analysis and Information Network

Stilbocarpa robusta (Punui)

Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Apiales
Family: Araliaceae
Subfamily: Aralioideae
Genus: Stilbocarpa
Species: S. robusta
Binomial name: Stilbocarpa robusta
Synonyms: Aralia lyallii var. robusta, Kirkophytum robustum, Stilbocarpa bollons
Common name: Punui

Stilbocarpa robusta is a perennial, flowering, native, tufted, megaherb that grows up to 1m tall and is endemic to the subantarctic islands of Snares and Enderby Island.
Stilbocarpa robusta has very large, bright green leaves are up to 73 cm across. They are undivided, broadly ovate to kidney-shaped. They are somewhat leathery, almost free of hairs and have margins that are shallowly lobed to rounded triangular.
The plants small, yellow, 5 petaled flowers (5 mm diam) are arranged in congested umbels. The flowers are hermaphrodite (having both male and female organs). They have 5 sepals, 5 stamens and the ovary is below the petals.

Colin Miskelly standing next to a Stilbocarpa robusta on the Snares Islands © Te Papa

Thanks to Wikipedia for text and information: