COPALENSE Kimnach, 1996

Distribution : Mexico (Sinaloa); shaded face of a rock cliff, c. 500 m.

Description (according to IHSP, 2003) :

Perennial herbs; annual vegetative shoots arising from the base of the previous year's stems, arching to prostrate, 5 - 25 cm, axis 4- 5 mm thick, tapering towards the tip, brownish-yellowish to reddish, not farinose.

Leaves easily falling and rooting to form new plants, obovate, obtuse, rarely minutely cuspidate, pale green, not glaucous, semi-imbricate on sterile shoots and 10 - 15 x 6 - 7 mm; flowering branches terminal, lax, leaves well-spaced, 20 - 28 x 6 - 10 mm.

Inflorescences diffusely paniculate with 5 - 10 primary branches that further branch, pedicels 1.5 - 2 mm.

Flowers 5-merous, sepals elliptic, ± 2.5 x 1 mm, light green, petals stellately spreading or slightly recurved, ovate-oblong, acute, with a minute apical bristle, white, 4 - 5 x 2 mm.

Cytology : n = 18

Closely related to S. bellum according to the protologue.