DECUMBENS var. URUBAMBENSIS  Pino, Núñez & Kamm, 2017

Type : G. Pino 2720. Peru. Dept. Cusco, Prov. Urubamba, Dist. Ollantaytambo, Ptacancha Valley, Bridge crossing after the town of Huilloc, Nov 15, 2014.

Etymology : The name refers to the occurrence in the Peruvian province of Urubamba.

Distribution : Peru (Dept. Cusco).

First Description by Pino, Núñez & Kamm in Cactus and Succulent Journal US 89(2):59-62. 2017 :

A succulent glabrous herb, eventually forming clusters of 30 - 40 cm diam.

Roots many, fascicular.

Stem procumbent, up to 20 cm long and up to 5 cm high, 0.5 - 1.5 cm diam., brownish grey.

Rosettes 1 - 8 (-30), 3 - 7 cm diam.

Leaves 18 - 22, sessile, very narrow obovate to narrow sub-spathulate, 2.5 - 3.5 cm long, 0.3 - 0.6 cm wide at base, 0.8 - 1.4 cm wide 1 cm from apex, 0.6 - 0.9 cm wide at middle, 2 - 3 mm thick, upper side flat to slightly concave, slightly convex and obscurely keeled in the rainy season, glaucous to olive green, intense green in the rainy season, somewhat reddish on apical half where exposed to light, lower side convex, somewhat keeled, olive green, acute, with a slightly recurved hyaline mucro 2 mm long at apex, base bi-lobed hyaline.

Flowering stem a horizontal or declining raceme, rachis 8 - 15 cm long, 2- 3 mm diam. at base, 1.5 - 2.5 mm diam. at apex, light green, pink at distal third. Peduncular bracts 8 - 12, appearing from the base, spaced 0.5 - 1 cm apart, elliptic to narrow obovate, 1 - 1.7 cm long, 0.4 - 0.8 cm wide, 2 - 3 mm thick, apex acute, both sides convex, same colour as leaves. Pedicels sub-horizontal, straight, 0.5 - 1.5 cm long, 1 - 1.5 mm diam., pale green to pinkish, with 0 - 1 bracteoles on apical half, same as peduncular bracts.

Flowers 1 - 3, appearing from May to November, present only on the distal third of the raceme, 1.5 - 1. 8 cm long and 0.8 - 1 cm in diam. Calyx lobes united at base 1 mm, sepals unequal linear lanceolate, obtuse, adpressed to corolla or separate in a right angle, 8 - 12 mm long, 2 - 3.5 mm wide, olive green. Corolla urceoate, sub-pentagonal, 0.9 - 1 cm thick near base, 0.8 - 0.9 cm thick near apex, 1.6 - 1.8 cm long, petals linear lanceolate, acuminate, acute, 1.6 - 1.8 cm long, 3.5 - 4.5 mm wide, outer surface keeled, cream yellow on apical half and reddish on basal half and keel, apex uncinate, recurving, inner surface yellow.

Note :

Echeveria decumbens var. urubambensis differs from E. decumbens var. decumbens mainly in the inflorescence. The latter has a longer inflorescence with more flowers, the flowers are smaller and redder and the pedicels are longer.