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

Key to Cotoneaster

View taxon page for Cotoneaster

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

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

1. Plant deciduous

2. Leaf  55–150 mm; flowers, fruits generally > 20; anthers purple; petals white,  ..... C. frigidus

2' Leaf blade 4–30 mm; flowers, fruits < 5; anthers white; petals pink to ± red, 

3. Leaf blade generally widely , 4–14 mm; stamens 8–11; fruit 4–7 mm; branchlets many, planar ..... C. horizontalis

3' Leaf blade generally , 10–30 mm; stamens 20; fruit 7–14 mm; branchlets few,  ..... C. simonsii

1' Plant evergreen

4. Leaf blade 5–15 mm, < 8 mm wide; plant sprawling, <= 1 m

5. Leaf blade narrowly elliptic, abaxially densely  ..... C. hodjingensis

5' Leaf blade narrowly oblanceolate, abaxially sparsely hairy ..... C. integrifolius

4' Leaf blade 15–95 mm, > 8 mm wide; plant arching, 1–9 m

6. Petals pink or rose, erect; stylesstones 2–3(4), some > 2 on all plants; fruit orange to red-orange ..... C. franchetii

6' Petals white, spreading; styles, stones 2; fruit bright red

7. Leaf blade 35–95 mm, 17–45 mm wide, thick, adaxially dark green, lateral veins often sunken ..... C. lacteus

7' Leaf blade 15–32 mm, 8–15 mm wide, thin, adaxially ± blue-green, lateral veins not sunken ..... C. pannosus


Please use this Google Form for Contact/Feedback

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 .

We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.