Jepson eFlora
Key to families | Table of families and genera

Key to Rhamnus

View taxon page for Rhamnus

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Leaves deciduous; sepals 5; fruit black, 3-stoned ..... R. alnifolia

1' Leaves evergreen; sepals 4–5; fruit red, 2-stoned, or black, 3-stoned

2. Leaf blade 20–60 mm, elliptic or ovate to lance-ovate; sepals 5; fruit black, 3-stoned — Central Coast (Monterey Co.), South Coast (Newport Back Bay), expected elsewhere ..... [R. alaternus]

2' Leaf blade 10–40 mm, elliptic to round; sepals 4; fruit red, 2-stoned (Rhamnus crocea complex)

3. Leaf blade <= 15 mm, flat abaxially; branches spreading ..... R. crocea

3' Leaf blade >= 15 mm, flat to concave abaxially; branches generally ascending

4. Leaf blade elliptic; small tree; Channel Islands ..... R. pirifolia

4' Leaf blade elliptic to round; shrub; mainland

5. Leaf blade glabrous or hairy abaxially, glabrous adaxially; twigs glabrous to finely hairy; California Floristic Province, Desert Mountains ..... R. ilicifolia

5' Leaf blade soft hairy; twigs densely hairy; s Peninsular Ranges (San Diego Co.) ..... R. pilosa


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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