Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Annual to tree
Leaves simple to pinnately to palmately compound, generally alternate; stipules free to fused, persistent to deciduous
Inflorescence: cyme, raceme, panicle, or flowers solitary
Flower generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, often with bractlets alternate with sepals; sepals generally 5; petals generally 5, free; stamens (0)5–many, pistils (0)1–many, simple or compound; ovary superior to inferior, styles 1–5
Fruit: achene, follicle, drupe, pome, or blackberry- to raspberry-like
Seeds generally 1–5
Genera in family: 110 genera, ± 3000 species: worldwide, especially temp. Many cultivated for ornamental and fruit, especially Cotoneaster , Fragaria , Malus , Prunus , Pyracantha, Rosa , and Rubus
Reference: [Robertson 1974 J Arnold Arbor 55:303–332,344–401,611–662]
Family description, key to genera by Barbara Ertter and Dieter H. Wilken.



Richard Lis

Shrub or small tree, evergreen
Stem: trunk < 80 cm diam; bark generally gray to reddish brown; twigs short
Leaves generally clustered, simple; stipules often deciduous; blade ± thin to leathery, entire to toothed, upper surface generally ± glabrous
Inflorescence: clusters; flowers 1–12
Flower: hypanthium funnel-like, tube persistent in fruit, rim cup-like, deciduous; petals 0; stamens 10–45, in 2–3 rows on hypanthium rim, anthers glabrous or hairy; pistil 1, free from hypanthium tube, ovary superior, 1-ovuled, style terminal, persistent in fruit, straight or becoming twisted, plumose
Fruit: achene, cylindric, hairy, included in hypanthium
Species in genus: 13 species: w North America, Mex
Etymology: (Greek: tailed fruit)
Reference: [Lis 1992 Int J Plant Sci 153:258–272]


C. traskiae Eastw.


Tree 3–8 m; branches spreading to erect
Leaf: petiole 2–10 mm; blade 2–6 cm, elliptic to (ob)ovate, thick-leathery, ± serrate or crenate, white-woolly below; lateral veins 6–10
Inflorescence: flowers 4–10; pedicel 0–5 mm, 5–7 mm in fruit
Flower: hypanthium 7–14 mm, white-tomentose, rim 4–7 mm diam; stamens 20–40, anthers hairy; style exserted, stigma ± hook-like
Fruit 10–13 mm; style 4–6 cm
Ecology: Dry, rocky soils
Elevation: 100–250 m.
Bioregional distribution: s Channel Islands (Santa Catalina Island)
Synonyms: C. betuloides var. t. (Eastw.) Dunkle
7 plants surviving in 1990
Horticultural information: In cultivation.
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for CERCOCARPUS%20traskiae being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Cercocarpus traskiae
Retrieve dichotomous key for Cercocarpus
Overlay Consortium of California Herbaria specimen data by county on this map
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