Ceanothus cordulatus A. Kellogg, Proc. Calif. Acad. Sci. 2: 124. 1861 Snow bush, Mountain whitethorn


Description:

Shrubs: to 1.5 m.

Stems: spreading, not rooting at nodes; branchlets yellow-green, terete, smooth, rigid, spinescent, pubescent.

Leaves: evergreen, alternate, not clustered; stipules thin, deciduous; petioles to 6 mm.

Leaf blades: ovate to elliptic, usually 1--2.5 x 0.6--1.5 cm, 3-veined, bases rounded, margins not revolute, entire, sometimes glandular-denticulate, tips acute to obtuse, abaxially pale gray-green, glabrous or slightly pubescent, especially along veins, adaxially light to gray-green, glaucous, plane to conduplicate, glabrous or pubescent.

Inflorescence: axillary, panicle-like dense clusters, 1.3--3.8 cm.

Flowers: white.

Fruits: trihedral, distinctly 3-lobed, 4--5 mm broad, roughened, slightly sticky when young; valves +/- crested.

Cytology: n = 12 (M. A. Nobs in H. E. McMinn, 1942)

Flowering: early spring--early summer.

Habitat: Rocky ridges and open pine forests; 900-2900 m.

Range: Calif., Nev., Oreg.; Mexico in Baja California.



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This page was last modified: Feb 18, 2000 CS.
herbarium@scarab.cordley.orst.edu