Loosely mat to hummock-forming to about 8cm high. Leaves glossy, bottle-green, almost translucent, spathulate-clavate, 2 by 1 cm, in crowded spirals. The whole plant tends to become suffused with red. Inflorescences of two to three short branches. Flowers bright yellow, five-petalled, 1cm or more across. North-western North America from Alaska to Oregon, in exposed rocky places, often mis-labelled in gardens. S.o. subsp. tenue, appears to be the smaller, lower, redder form grown as S. 'Procumbens'. Ideal for the raised trough as this 1cm carpeter with small leaves is bright red throughout most of the year.