Euphorbia rigida Bieberstein

Perennial herb to 60 cm high, multi-stemmed, each stem generally unbranched and perennial. Leaves alternate; blades on stems lanceolate, 20-70 mm long, 5-17 mm wide, fleshy and with a bluish white bloom; blades in whorl-head lanceolate-ovate to obovate; blades in floral head in pairs, deltoid-ovate to rounded, pale yellow. Floral head umbel with 7-12 rays. Cyathia 3.5-4.5 mm wide, with ovate, fringed or toothed lobes; glands oval, 2-horned, yellow.

Mediterranean, Middle East.

Source: Forster, P. (2002). Euphorbiaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.

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Distribution map
kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Malpighiales
family       Euphorbiaceae
genus        Euphorbia L.