CHIHUAHUAENSIS  von Poellnitz, 1935 

Series Urbiniae

Type : R. Endlich 1232, in the Rio Colorado valley, Chihuahua, Mexico, on stony soil, 2300 m, 16. 4. 1906.

Etymology : Referring to the type locality in the Mexican state Chihuahua.

Distribution : Mexico (Sonora, Chihuahua, Durango).

First Description by von Poellnitz in Fedde's Repertorium Specierum Novarum Regni Vegetabilis,  38: 29. 1935:

Glabrous, stemless.

Leaves numerous, densely rosulate, obovate-spatulate, acuminate, mucronate, margins reddish, when dry not or only slightly glaucous, to 4 cm long, 2 cm broad.

Flowering stems to 20 cm long or more, bracts few, oblong-linear or broadly linear, acute, to 13 mm long.

Inflorescence cymose, few-branched (ca 3 - 5), branches short, few-flowered, pedicels stout, 4 - 6 mm long, bracteoles mostly or always longer than pedicels.

Calyx tube very short, sepals ovate, acute, unequal, ascending, to 4 mm long, corolla when dried reddish and apex as well as petal margins yellow, ca 11 mm long, corolla tube 3 mm long, petals lanceolate, apex recurved, episepalous stamens inserted at apex of the corolla tube, 4 mm long, epipetalous ca 4 mm from the corolla base attached, 3 mm long, anthers narrowly oblong, (1-) 1.5 mm long, carpels at base a little connected, erect, 4 mm long, styles subulate, erect, 3 mm long.

Cytology : n = 26, 50.

Note :

1. E. Walther's text about E. chihuahuaensis (Echeveria, 88-90. 1972) does not agree with the original description by von Poellnitz and therefore is of no use, the same applies to Kimnach's summary in the Illustrated Handbook of Succulent Plants, 2003, based on Walther's text.

2. Some clones of E. chihuahuaensis are offsetting freely, others do not produce offsets.

3. The ISI 642 offering E. chihuahuaensis 'Ruby Blush' differs from the type in having more numerous, smaller, redder leaves arranged in a more compact rosette .