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 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. 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 August 21, 2019.
Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on August 21, 2019.
MAP CONTROLS 1. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner.
2. California county polygons can be turned off and on in the layer control box.
3. Filling of Jepson subdivision polygons can be turned off and on in the layer control box.
4. Moving the cursor over any numbered cluster will show the range boundary of the included specimens (with a blue polygon).
5. Marker clustering can be turned off by clicking this link:
Marker Clustering OFF WARNING: Turning this off might cause maps with large numbers of specimens to load slowly.
(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).
Data provided by the participants of the
Consortium of California Herbaria.
MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window.
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.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
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.
