Low, few-branched, terrestrial (?) shrub;  branches coarsely angled and ribbed, glabrous glaucous, brown when dry.  Leaves lance-elliptic, (8.5-)11-17 x (3-)4.5-8 cm, basally cuneate or obtuse, apically acuminate, essentially glabrous but with marginal scattered capitate, glandular hairs to 1 mm;  pinnatinerved with midrib impressed above and prominently raised beneath, lateral nerves and veinlets raised on both surfaces and veinlets obscure beneath;  petioles subterete, coarsely rugose, glabrous, 8-15 mm long and 2-4 mm diameter.  Inflorescence racemose, 13-23-flowered, flowers secund;  rachis coarsely ribbed, glaucous, 11-26 cm, with scattered capitate, glandular hairs proximal one-fourth;  floral bracts ovate, acute to acuminate, 4-6 x 2 mm, basally slightly clasping, lowest ones with laminas densely glandular pilose;  pedicels coarsely angled and ribbed, glabrous, glaucous, (13-)15-20 mm long an 1.5-2 mm diam.;  bracteoles ovate-lanceolate, acuminate, keeled, 4-4.5 x 1.5-2 mm, glabrous, glaucous, basally glandular-fimbriate margined, located at or just above middle of pedicel.  Flowers with calyx stipitate (stipe to 1 mm), glabrous, glaucous, 10-11 mm long;  hypanthium cylindric, rugose, slightly apophysate, 4.5-5.5 mm long;  limb campanulate, 4.5-6 mm long;  lobes triangular, 2-3 mm long;  sinuses acute or obtuse;  corolla cylindric, coriaceous, prominently nerved, glabrous, glaucous, 27-30 mm long and 5-6 mm diameter, the lobes oblong, obtuse, reflexed at anthesis, 4 x 2 mm;  stamens unequal, 8-9 mm long;  filaments alternately either ca. 3.5 or 4.5 mm long, densely short-hirsute with tan hairs;  anthers including tubules 6 mm long;  thecae 5 mm long, granular;  tubules ca. 1 mm long, dehiscing by strictly terminal, slightly flaring pores;  style strongly exserted, 32-35 mm long.  Berry not seen.

    Distribution.  Endemic to Mexico and known from only two collections.  Rare and endangered.