Euphorbia lenewtonii

Euphorbia lenewtonii is a densely branching perennial herb, known from only one locality in Tanzania. It has green branches with some yellow highlights and forms tight cushions up to 10 cm tall and 50 cm in diameter, with the lower branches extended at ground level and rooting freely in contact with the soil. In cultivation the stems become more elongate but the plants still are relatively compact. The flowers (cyathia) are yellow.

Roots: It has thickened roots, to 7 mm in diameter.
Stems: Branches cylindrical, up to 8 cm long and 1 cm in diameter, with raised tubercle-teeth about1 cm apart in 5 spiral series, green with scattered slightly raised whitish elongated markings. Spine shield crowning the teeth, isolated, oblong-triangular, 3 mm and 1.25 mm wide above the Spines, extending downward to 4 mm, whitish-grey.
Spines: Paired 5-8 mm long. The two stipular spines are shorter, about 2 mm long.
Inflorescences (cymes): Solitary, sessile, 1-forked, with subsessile cyathia.
Flowers (cyathia): Yellow 3 mm long, 2.5 mm wide. Nectar-glands oblong, just touching, yellow.
Fruits: Sessile, hardly 3-lobed, 4 mm across, green at the base, dark red above.

Hardiness: 8��C = 46.4��F
Sun exposure: Full to partial sun
Watering needs: regular to moderate

Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz