|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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|Family: Rhamnaceae||View Description||Dichotomous Key|
|Genus: Ceanothus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Ceanothus arcuatus McMinn
Habit: Plant generally mound-like, dense, generally 0.3--1 m. Stem: spreading to ascending, not rooting at nodes; twigs brown to gray-brown, glaucous. Leaf: opposite, generally not clustered, evergreen, spreading to ascending; stipules knob-like; petiole < 3 mm; blade 7--12 mm, 2--5 mm wide, elliptic to obovate, adaxially dull green, glabrous, abaxially pale green, glabrous to strigose, margin generally entire, +- not thick, +- not rolled under. Inflorescence: umbel-like, < 1.5 cm. Flower: generally white, occasionally light blue. Fruit: 4--6 mm, white, +- 3-ridged; horns 1.5--2 mm, +- slender.
Ecology: Open rocky slopes, montane forest; Elevation: 580--2140 m. Bioregional Distribution: KR, n NCoR, s CaRH, n&c SNH; Distribution Outside California: Oregon. Flowering Time: Apr--Jun Note: Previously treated as part of Ceanothus fresnensis or in error as hybrid.
eFlora Treatment Author: Dieter H. Wilken & Dylan O. Burge
Jepson Online Interchange
Previous taxon: Ceanothus arboreus
Next taxon: Ceanothus confusus
Citation for this treatment: Dieter H. Wilken & Dylan O. Burge 2017. Ceanothus arcuatus, Revision 4, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=86346, accessed on January 24, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 24, 2017.