BORSCHII (R. T. Clausen) R. T. Clausen, 1975

Synonym : Sedum leibergii var. borschii R. T. Clausen (1944)

Distribution : North-western USA (Idaho, Montana), sites which are too hot and too dry for trees, 1270 - 2120 m.

Description (by 't Hart & Bleij in IHSP 2003) :

Glabrous perennial herbs with slender decumbent stems, with lateral branches from lower parts.

Leaves loosely imbricate, alternate, obovate or elliptic, rarely lanceolate, obtuse, finely papillose at the tip and the margins, subterete, sessile, green, 4,7 - 7,5 x 2,5 - 3,4 mm, divergent.

Inflorescences : Flowering branches ascending, 4,7 - 6 cm, appearing angled when dry, inflorescences cymes with 2 or 3 branches, bracts leaf-like but smaller.

Flowers 5-merous, subsessile, sepals broadly sessile, ovate, acute or obtuse, yellow-green, ± 2 x 1,5 mm, erect, petals lanceolate-elliptic, acute, mucronate, appendaged, yellowish, 5 - 6,5 mm, widely spreading, filaments yellow, anthers yellow.

Cytology : 2n=32, 43-51, 45-54, 50

Ray Stephenson writes (Sedum, Cultivated Stonecrops, 1994, p. 196) : "Tiny rosettes are very similar in size to those of Sedum debile, but the latter has opposite-decussate leaves."