Comarostaphylis polifolia subsp. coahuilensis Henrickson

  • Family

    Ericaceae (Magnoliophyta)

  • Scientific Name

    Comarostaphylis polifolia subsp. coahuilensis Henrickson

  • Primary Citation

    Madroño 28: 34. 1981

  • Common Names

    madroña, madroño

  • Description

    Description: Erect to spreading, low, rounded, often gnarled shrubs, 0.2-2 m tall; young twigs and petioles puberulent to hirtellous to subcanescvent, trichomes usually eglandular. Leaves conduplicately folded at matuirity or plane, 3.3-5.5 x 0.6-1.9 cm, apically obtuse to acute, but usually mucronate, lower surface subglabrous to puberulent. Inflorescences 2.5-6.2 cm long; rachis, pedicels, bracts, bracteoles, and calyx puberulent, also usually with stalked, swollen-headed glandular trichomes. Flowers: ovary glabrous or sparsely pilose. Fruit 4-6 mm in diam.

    Distribution: Distribution. Endemic to Mexico, and known only from seven mountain ranges in the central Chihuahuan Desert of southern and central Coahuila, in areas of matorral xerofilo (Rzedowski, 1978) or open chaparral (Henrickson, 1981), at elevations of approximately 1500-2600 m. Flowering Apr-Aug.; fruiting Jul-Nov.

    Type: Type. Mexico. Coahuila: Cañon de Calabazas in Sierra Mojada, S of La Esmeralda (nr. 27°16'N, 103°41'W), 6 May 1973 (fl), Johnston et al. 10881 (holotype, LL, photo, Diggs neg. 32; isotype, MEXU, n.v.).

  • Floras and Monographs

    Comarostaphylis polifolia subsp. coahuilensis Henrickson: [Article] Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560.