Common Name: ROSE FAMILY Habit: 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). Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis. eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera, treatment of genera by Daniel Potter, except as noted Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Habit: Shrub, tree, unarmed; evergreen or deciduous. Leaf: simple, stipuled, petioled, entire. Inflorescence: flowers 1 or clustered at branch tips; pedicel bractlets 0. Flower: hypanthium bractlets 0; sepals persistent; petals clawed, erect, pink to +- red or rose, at least near base, or spreading, white; stamens 8--21, anthers darker after flower; ovary inferior, 2--5-chambered, styles 2--5, free. Fruit: pome, drupe-like, generally orange to red, stones 2--5. Species In Genus: +- 400 species: eastern hemisphere; many ornamental. Etymology: (Latin: quince-like, possibly from leaf shape) Note: 2 subgenera, 1 with petals erect, pink to +- red (flower length important), 1 with petals spreading, white (flower width important). eFlora Treatment Author: Peter F. Zika Reference: Fryer & Hylmö 2009 Cotoneasters. Timber Press Unabridged Reference: Fryer & Hylmö 1998 New Plantsman 5:132--144; Fryer & Hylmö 2009. Cotoneasters: A Comprehensive Guide to Shrubs for Flowers, Fruit, and Foliage. Timber Press, Portland, OR. 344 p.
Cotoneaster lacteus W.W. Sm.
NATURALIZED Habit: Shrub 1--9 m, arching; evergreen. Leaf: blade 35--95 mm, elliptic to obovate, thick, abaxially pale-tomentose, hairs thinning in age, adaxially dark green, lateral veins often sunken, tip blunt or acute. Flower: 8--9 mm wide; petals spreading, white; stamens 20, filaments white, anthers purple; styles 2. Fruit: 6--7 mm, 6--7 mm wide, +- spheric, bright red; stones 2. Ecology: Open forest, meadows, disturbed ground, thickets, creeks, ponds, canyons; Elevation: < 500 m. Bioregional Distribution: NCo, KR, CaRF, CCo, SnFrB, SCo, PR, expected elsewhere; Distribution Outside California: to British Columbia; native to China. Flowering Time: May--Jul, fruiting Nov--Apr Jepson eFlora Author: Peter F. Zika Reference: Fryer & Hylmö 2009 Cotoneasters. Timber Press Jepson Online Interchange Weed listed by Cal-IPC Previous taxon: Cotoneaster integrifolius Next taxon: Cotoneaster pannosus
Botanical illustration including Cotoneaster lacteus
Citation for this treatment: Peter F. Zika 2012, Cotoneaster lacteus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=103839, accessed on December 06, 2019.
Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 06, 2019.
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Data provided by the participants of the
Consortium of California Herbaria.
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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month
Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.