Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Sorbus

View taxon page for Sorbus

(For a list of species in Sorbus, use the above link.)

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

1. Hairs of stem-buds,  axils axils, inflorescence ± white or ± gray

2. Leaflets dull adaxially, 11–17; stem-bud not shiny, not sticky, hairs dense ..... [S. aucuparia]

2' Leaflets shiny adaxially, 7–13; stem-bud shiny, sticky, hairs generally sparse ..... S. scopulina

1' Hairs of stem-buds, leaflet axils, leaf axils, inflorescence primarily red-brown

3. Leaflets shiny adaxially, 2–4 cm; stem-bud shiny, sticky, not glaucous, hairs generally only on  margins, tips; flower, fruit  ± glabrous ..... S. californica

3' Leaflets dull adaxially, 2–6 cm; stem-bud glaucous, not shiny, not sticky, hairs on scale margins, tips, faces; flower, fruit pedicel glabrous or ± hairy ..... S. sitchensis

4. Lateral leaflets ±  or toothed above middle ..... var. grayi

4' Lateral leaflets toothed below middle ..... var. sitchensis


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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

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

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