|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Rhamnaceae||View Description||Dichotomous Key|
|Genus: Frangula||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Frangula purshiana (DC.) A. Gray
Stem: bark gray; twigs green, gray, red, or dull brown, generally glabrous or densely hairy; terminal bud brown-hairy. Leaf: generally deciduous; petiole 5--25 mm; blade (50)80--150 mm, widely elliptic to obovate, generally thin, generally green, generally not papillate, glabrous to sparsely hairy, or blue- or green-gray, +- glaucous when fresh, papillate, densely hairy or velvety adaxially, light green, sparsely to densely hairy abaxially, base rounded, cordate, or tapered, tip obtuse to truncate or notched, margin entire to toothed, generally not wavy, veins prominent, 1°, 2°, 3° veins generally glabrous or sparsely hairy. Inflorescence: < 25-flowered; pedicel < 25 mm. Flower: hypanthium 3 mm wide. Fruit: 3-stoned, 5--10 mm, black.
Toxicity: Bark and fruit TOXIC in excess, especially to children. Note: Cathartic drugs from bark.
Synonyms: Rhamnus purshiana DC.
eFlora Treatment Author: John O. Sawyer, Jr.
Jepson Online Interchange
Previous taxon: Frangula californica subsp. ursina
Next taxon: Frangula purshiana subsp. annonifolia
Citation for this treatment: John O. Sawyer, Jr. 2017. Frangula purshiana, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=26043, accessed on April 23, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 23, 2017.