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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0–3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0–5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5–many, anther pollen sacs generally 2; pistils (0)1–many, simple or compound, ovary superior to inferior, styles 1–5. Fruit: 1–many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1–5 stones. Seed: generally 1–5 (per fruit, not per flower).
110 genera, ± 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. [Potter et al. 2007 Plant Syst Evol 266:5–43] Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis. —Scientific Editors: Daniel Potter, Thomas J. Rosatti.
Unabridged references: [Robertson 1974 J Arnold Arbor 55:303–332, 344–401, 611–662]
Key to Rosaceae
Shrub, tree. Leaf: simple, alternate or clustered on short-shoots, entire to serrate, generally glabrous, generally glandular on teeth and at blade-petiole junction, veins pinnate; stipules deciduous. Inflorescence: raceme, cluster, or flowers 1; pedicel bractlets 0. Flower: hypanthium cup- to urn-shaped, deciduous in fruit, bractlets 0; sepals erect to reflexed; stamens generally 10–30, generally in 2+ whorls; pistil 1, ovary superior, chamber 1, ovules 2, style 1, stigma ± spheric or disk-like. Fruit: drupe, generally ovoid to spheric.Key to Prunus
200+ species: worldwide, especially northern temperate. (Greek: plum, prune) Seeds of many species ± TOXIC from production of hydrocyanic acid. Many cultivated for wood, ornamental, edible fruit; some persisting near human habitations, some possibly naturalized (e.g., Prunus laurocerasus L.).
Unabridged note: Many cultivated for wood, ornamental, edible fruit; some persisting near human habitation (Prunus armeniaca L., apricot; Prunus avium (L.) L., sweet cherry; Prunus caroliniana (Mill.) Aiton; Prunus cerasus L., sour cherry; Prunus domestica L., plum; Prunus laurocerasus L., laurel cherry; Prunus lusitanica L., Portugal laurel; Prunus mahaleb L.; Prunus munsoniana W. Wight & Hedrick; Prunus speciosa (Koidz.) Nakai; Prunus yedoensis Matsum.).
Shrub, tree < 15 m, often in dense thickets, not thorny. Leaf: deciduous; petiole 3–12 mm; blade 15–60(80) mm, generally elliptic to obovate, crenate-serrate, base wedge-shaped, tip obtuse to rounded. Inflorescence: raceme, ± flat-topped; flowers (3)6–12; pedicels 3–12(18) mm. Flower: sepals glabrous, entire; petals 3–8 mm, white. Fruit: 7–14 mm, glabrous, red to purple; pulp ± fleshy.
Rocky slopes, canyons, chaparral, mixed-evergreen or conifer forest; < 3000 m. California Floristic Province (except Great Central Valley, Channel Islands), Great Basin Floristic Province; to British Columbia, Montana, New Mexico, Baja California. Apr–Jun [Online Interchange]
Previous taxon: Prunus dulcis
Next taxon: Prunus eremophila
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 20 2014
Citation for this treatment: [Author of taxon treatment] 2013. Prunus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=39978, accessed on Dec 20 2014
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|Geographic subdivisions indicated for the distribution of Prunus emarginata|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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