Euphorbia biumbellata, Poiret

77. E. biumbellata Poiret View in CoL View at ENA , Voy. Barb. 2: 174 (1789).

Glabrous perennial up to 65 cm, occasionally branched from the base, with (6-)8-20(-27) axillary rays usually clustered together to form a whorl below the umbel, and with 0-10(-19) more widely spaced axillary rays. Leaves 20-55 x 2-12 mm, linear to linearlanceolate, entire. Ray-leaves lanceolate to ovate-deltate. Rayletleaves reniform to deltate-rhombic. Rays 8-21, up to 4 times dichotomous. Glands with somewhat davate horns. Capsule 3-3-8 x 3-5-4 mm, shallowly sulcate, granulate on the keels. Seeds 2-3 mm, ovoid-cylindrical, irregularly and shallowly rugulose, pale grey, darker in the depressions. Rocky or sandy ground near the coast. W. Mediterranean region; local. BI Co G a Hs It Si.

E. megalatlantica subsp. briquetii (Emberger & Maire) Losa & Vindt , Trav. Inst. Sci. Chérif. ser. bot., 19: 456 (1960), occurs between Lorca and Puerto de Lumbreras in S.E. Spain. It is like 77 but has not more than 10 axillary rays or 5 umbel-rays and a more prominently tuberculate capsule; it may be more closely related to E. biumbellata than to E. megalatlantica .