TRELEASEI Rose, 1911

Distribution : Mexico (Puebla)

Description (according to IHSP, 2003) :

Perennial subshrubs, stems erect, procumbent or pendulous, glaucous, to 20 cm.

Leaves alternate, crowded, standing nearly at right angles to the stem, oblong to nearly ovate, obtuse, shortly and broadly spurred, thick but flat to slightly subterete, 10 – 35 mm, flowering branches axillary, ascending or drooping.

Inflorescences small compact corymbs.

Flowers 5-merous, subsessile, sepals basally free, unequal, linear to oblanceolate, acute to subactue, terete, 3 – 5 mm, petals free to near the base, lanceolate to subovate, obtuse to acute, shortly mucronate, ca. 5.5 mm, bright yellow, filaments and anthers yellow.

Cytology : 2n = 68