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| Jepson eFlora
Key to families | Table of families and genera This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press. Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link. |
Shrub, small tree.
Stem: bark gray- to red-brown; overwintering buds ovate to lanceolate, ± red to ± purple.
Leaf: simple, deciduous; stipules deciduous.
Inflorescence: raceme, cluster ( panicle), flowers 3–16+; pedicel bractlets generally 1–2.
Flower: hypanthium bell- to urn-shaped, bractlets 0; sepals persistent; petals erect to spreading, white (suffused with red); stamens ± 10–20; ovary inferior, 2–5-chambered, styles 2–5.
Fruit: pome of 2–5 papery segments, berry-like, generally spheric, generally blue-black.
± 25 species: temperate North America, Eurasia, n Africa. (Latin: from old French common name) Fr of some species used by Native Americans for food.
Unabridged references: [Jones 1946 Illinois Biol Monogr 20:1–126]
Unabridged note: Variation in Amelanchier in w North America not studied as extensively as in e North America, where hybridization, polyploidy, and apomixis have contributed to considerable taxonomic complexity (Campbell & Wright 1996 Folia Geobot Phytotax 31:345–354; http://biology.umaine.edu/Amelanchier).
1. Lf finely hairy abaxially in fruit; twigs glabrous (n DMtns) to generally white-hairy; styles 2–4(5) ..... A. utahensis
1' Lf glabrous abaxially in fruit; twigs glabrous; styles 4–5 ..... A. alnifolia
2. Ovary top glabrous; petals 8–12 mm; leaf glabrous or occasionally sparsely hairy abaxially in flower; fruit 8–9 mm diam ..... var. pumila
2' Ovary top generally hairy; petals 12–15 mm; leaf finely or occasionally densely hairy abaxially in flower; fruit 10–13 mm diam ..... var. semiintegrifolia
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [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].
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.