Monographs Details:
Authority:

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. (Published by NYBG Press)
Family:

Ericaceae
Description:

Subspecies Description - Leaves narrowly ovate to ovate or elliptic, 3-12.8 × 1-4.2 cm, (to 14.9 × 8.1 cm on sucker shoots), usually strongly revolute. Inflorescences 3.5-8 cm long, gray-tomentose or rarely with glandular trichomes; floral bracts lance-linear to lanceovate, nearly plane to subnavicular, 2-7 mm long; pedicels 4-8.5 mm long. Flowers with calyx lobes gray tomentose (glandular).

Discussion:

The epithet diversifolia is quite descriptive of this subspecies which exhibits an extreme degree of variation in leaf size, shape, and serration. Leaves are typically narrowly ovate to elliptic, strongly revolute, and serrulate to serrate. However, leaves on sterile or sucker shoots can be much larger (to 14.9 × 8.1 cm), broadly ovate, and with large serrations to ca. 1 cm broad × 1 cm tall. Examples of extreme specimens are Gander 223.52 (SD), Woodcock 1564 (A), and Woodcock s.n. (Jun 1924) (CAS). Parry (1884) discussed this variation in his type description.

Distribution and ecology: Comarostaphylis diversifolia subsp. diversifolia extends from approximately 55 km south of Ensenada, Baja Calif., N to San Diego Co., Calif. The subspecies is typically found in chaparral vegetation with such associates as Arctostaphylos glandulosa, Cercocarpus sp., Cupressus sp., Heteromeles arbutifolia, Quercus sp., Rhus integrifolia, and Xylococcus bicolor. Elevations range from near sea level to approximately 550 m. Flowering and fruiting Mar-Jun and (Mar-) Jun-Sep, respectively.

Distribution:

Mexico North America| Baja California Mexico North America| United States of America North America| California United States of America North America|

Common Names:

summer holly