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Cotoneaster acutifolius

(Peking Cotoneaster)

Overview

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Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Chinese:

Hui Xun Zi

Common Names in English:

Peking Cotoneaster

Description

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Family Rosaceae

Trees , shrubs , or herbs, deciduous or evergreen . Stems erect , scandent , arching , prostrate , or creeping , armed or unarmed . Buds usually with several exposed scales , sometimes with only 2. Leaves alternate, rarely opposite, simple or compound ; stipules paired , free or adnate to petiole , rarely absent, persistent or deciduous; petiole usually 2-glandular apically; leaf blade often serrate at margin , rarely entire. Inflorescences various, from single flowers to umbellate , corymbose , racemose or cymose-paniculate. Flowers usually actinomorphic , bisexual , rarely unisexual and then plants dioecious. Hypanthium (formed from basal parts of sepals, petals, and stamens) free from or adnate to ovary, short or elongate . Sepals usually 5, rarely fewer or more, imbricate; epicalyx segments sometimes also present. Petals as many as sepals, inserted below margin of disk, free, imbricate, sometimes absent. Disk lining hypanthium, usually entire, rarely lobed . Stamens usually numerous , rarely few, always in a complete ring at margin of or above disk; filaments usually free, very rarely connate ; anthers small, didymous , rarely elongate, 2-locular. Carpels 1 to many, free, or ± connate and then adnate to inner surface of cupular receptacle; ovary inferior, semi-inferior, or superior; ovules usually 2 in each carpel, rarely 1 or several, anatropous , superposed . Styles as many as carpels, terminal , lateral , or basal, free or sometimes connate. Fruit a follicle, pome, achene, or drupe, rarely a capsule, naked or enclosed in persistent hypanthium and sometimes also by sepals. Seeds erect or pendulous, sometimes winged , usually exalbuminous , very rarely with thin endosperm; cotyledons mostly fleshy and convex abaxially, rarely folded or convolute.

Between 95 and 125 genera and 2825-3500 species: cosmopolitan , mostly in N temperate zone; 55 genera (two endemic) and 950 species (546 endemic) in China.

Many plants of this family are of economic importance and contribute to people s livelihoods. The Rosaceae contain a great number of fruit trees of temperate regions . The fruits contain vitamins, acids, and sugars and can be used both raw and for making preserves, jam, jelly, candy, various drinks, wine, vinegar, etc. The dried fruits of the genera

Amygdalus and Armeniaca are of high commercial value. Some plants in the genus Rosa containing essential oils or with a high vitamin content are used in industry . Rosaceae wood is used for making various articles, stems and roots are used for making tannin extract, and young leaves are used as a substitute for tea. Numerous species are used for medical purposes or are cultivated as ornamentals .

The Rosaceae are very well represented in China, with great economic and scientific importance. The Co-chairs of the Editorial Committee (Wu and Raven) here note that the patterns of relationship are complex and the group is taxonomically difficult. [1]

Genus Cotoneaster

Shrubs , rarely small trees , erect , decumbent , or prostrate , deciduous, semievergreen, or evergreen . Branchlets mostly terete , rarely slightly angulate , unarmed . Winter buds small; scales several, imbricate, exposed. Leaves alternate, simple , shortly petiolate ; stipules caducous , usually subulate , small; margin of leaf blade entire, venation camptodromous . Inflorescences terminal or axillary , cymose or corymbose , sometimes flowers several fascicled or solitary. Hypanthium turbinate or campanulate , rarely cylindric , adnate to ovary. Sepals 5, persistent , short. Petals 5, erect or spreading , imbricate in bud, white, pink, or red. Stamens 10-20(-22), inserted in mouth of hypanthium. Ovary inferior or semi-inferior, 2-5-loculed; carpels 2-5, connate abaxially, free adaxially; ovules 2 per carpel, erect; styles 2-5, free; stigmas dilated . Fruit a drupe-like pome, red, brownish red, or orange to black, with persistent, incurved , fleshy sepals, containing pyrenes; pyrenes (1 or) 2-5, bony, 1-seeded; seeds compressed ; cotyledons plano-convex .

About 90 species in the broad sense: widespread in temperate N Africa, Asia (except Japan), Central America (Mexico), and Europe, most abundant in SW China; 59 species (37 endemic) in China.

The shrubs are widely planted as ornamentals for their attractive fruits and flowers, and as borders , hedges , and ground cover. Further studies are necessary to clarify a taxonomy complicated by hybridization and apomixis.[2]

Physical Description

Species Cotoneaster acutifolius

Shrubs deciduous, 2-4 m tall. Branchlets brownish or reddish brown, terete , slender, initially villous , glabrescent . Petiole 2-5(-10) mm, villous; stipules caducous , brown, linear-lanceolate, 3-5 mm, slightly villous; leaf blade elliptic-ovate to oblong-ovate, 2-4(-5) × 1-2(-3) cm, veins raised abaxially and impressed adaxially, adaxially glabrous or both surfaces initially villous, gradually glabrescent, subglabrous when old, base broadly cuneate, apex acute, rarely acuminate. Corymbs 2-4 cm, 2-5-flowered; rachis and pedicels villous; bracts linear-lanceolate, 3-5 mm, slightly pilose . Pedicel 3-5 mm. Flowers 7-8 mm in diam. Hypanthium campanulate or shortly cylindric , abaxially glabrous or villous. Sepals triangular, 1-2 × 1.5-2 mm, apex acute or ± obtuse . Petals erect , white, tinged reddish, broadly obovate or oblong , 3.5-4.5 × 3-4 mm, glabrous , base somewhat long clawed, apex obtuse. Stamens 10-15, shorter than petals. Ovary densely villous apically; styles often 2, free , not exceeding stamens. Fruit black, ellipsoid , obovoid , or subglobose, 6-8(-10) mm in diam., villous, pyrenes 2 or 3. Fl. May-Jun, fr. Aug-Sep. [source]

ID Features: Imbricate bud, appressed with loose exposed outer scales. Fishbone stem pattern. Pale pink flowers. Black, pome fruits. Irregular growth habit. Long spreading branches. Alternate leaves. Pubescence leaf.

Habit: A deciduous medium-sized shrub with long, spreading , arching branches. • Growth Form: Multiple Stem • Shape and Orientation: Semi-Erect

Flowers: Pale pink flowers. Small and clustered. Blooms early June. • Bloom Period: Mid Spring • Flower Color: Red • Flower Conspicuous: Saucer shaped

Seeds: Seed per Pound: 24194 • Seed Spread Rate: Slow • Seedling Vigor: Medium • Fruit: Black pome fruit. 0.5" in diameter. Ripen in September through October. Can be showy. • Fruit/Seed Abundance: High • Fruit/Seed Color: Red • Fruit/Seed Conspicuous: Yes • Cold Stratification Required: Yes

Foliage: Glossy • Foliage Shape: Ovate • Foliage Color: Green • Normal foliage color: Green • Underside foliage: Green • Juvenile foliage: Green • Mature foliage: Green • New foliage: Green • Spring foliage: Green • Summer foliage: Alternate leaf arrangement . Simple , deciduous leaves. Ovate leaf shape. 1" to 2.5" long and up to 1" wide. Dull green leaf color. More pubescent than C. lucidus. • Fall foliage: Yellow to red fall color. • Foliage Porosity Summer: Dense • Foliage Porosity Winter: Moderate • Foliage Texture: Medium • Fall Conspicuous: Yes • Leaf Retention: No

Size/Age/Growth

Active Growth Period: Spring and Summer • Growth Rate: Moderate • Mature Height (feet): 13.0 • Maximum Height at 20 Years (feet): 6 • Size: to 10 ft . tall and wider. • Vegetative Spread Rate: None • Lifespan: Lifespan

Landscaping

Landscape Uses: Hedge . Bank cover . Groupings or mass. Espalier . For flowers or fruit effect. Screen . • Liabilities: Bees are attractive to flowers. Fireblight. Leaf spot. Spider mites . Scale. • Care: Follow a regular watering schedule during the first growing season to establish a deep, extensive root system . Feed with a general purpose fertilizer before new growth begins in spring . For a tidy, neat appearance , shear annually to shape .

Habitat

Slopes , foothills, gullies, forests , forest margins, thickets, mountain valleys, exposed grasslands; 1000--3700 m. [3].

Hardy to zone 4, best in colder climates.

Typically found at an altitude of 0 to 4,840 meters (0 to 15,879 feet).[4]

Biology

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Reproduction

Duration: Perennial • Coppice Potential: No • Progagated by Bulbs: No • Propagated by Bare Root: Yes • Propagated by Container: Yes • Propagated by Corms: No • Propagated by Cuttings: No • Propagated by Seed: Yes • Propagated by Sod: No • Propagated by Sprigs: No • Propagated by Tubers: No • Fruit/Seed Period Begin: Summer • Fruit/Seed Period End: Fall • Fruit/Seed Persistence: Yes

Growth

Culture: Transplant from containers only because of sparse root system . Prefers well-drained, loose soil. Wind tolerant . PH adaptable. Full sun to partial shade. Prune tolerant. Salt tolerant.

Soil: Adapted to Medium Textured: Adapted to Medium Textured Soils • Adapted to Coarse Textured Soils: Yes • Anaerobic Tolerance: None • Salinity Tolerance: High • CaCO3 Tolerance: High • Minimum pH: 5.5 • Maximum pH: 7.5 • Fertility Requirement: Medium

Sunlight: Sun Exposure: Full sun • Shade Tolerance: Intermediate

Moisture: Drought Tolerance: Medium • Minimum Precipitation: 32 • Maximum Precipitation: 60 • Moisture Use: Medium • Water Requirements: Once established needs only occasional water.

Temperature: Minimum Temperature (F): -38 • Minimum Frost Free Days: 120 • Heat Zones: High: 8 (>90 to 120 days) Low:1 (< 1 days) (map) • Cold Hardiness: High:8 (10 to 20 F) Low:4 (-30 to -20 F) (map)

Taxonomy

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Synonyms

Cotoneaster niger var. acutifolius (Lindl. Ex Ledeb.) Wenz. • Cotoneaster sinensis hort. ex Zabel

Notes

Publishing author : Maxim. Publication : Prim. Fl. Amur. 171

Similar Species

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Members of the genus Cotoneaster

ZipcodeZoo has pages for 56 species, subspecies, varieties, forms, and cultivars in this genus:

C. acutifolius (Peking Cotoneaster) · C. adpressus (Creeping Cotoneaster) · C. adpressus var. praecox (Creeping Cotoneaster) · C. adpressus 'Little Gem' (Little Gem Cotoneaster) · C. amoenus (Cotoneaster) · C. apiculatus (Cranberry Cotoneaster) · C. bullatus (Cotoneaster) · C. cochleatus (Cotoneaster) · C. congestus (Pyrenees Cotoneaster) · C. conspicuus (Necklace Cotoneaster) · C. dammeri (Bearberry Cotoneaster) · C. dammeri 'Eichholz' (Bearberry Cotoneaster) · C. dammeri 'Mooncreeper' (Bearberry Cotoneaster) · C. dammeri 'Skogholm' (Bearberry Cotoneaster) · C. dammeri 'Streibs Findling' (Bearberry Cotoneaster) · C. dielsianus (Cotoneaster) · C. discolor (Cotoneaster) · C. divaricatus (Spreading Cotoneaster) · C. franchetii (Franchet Cotoneaster) · C. frigidus (Himalayan Tree Cotoneaster) · C. glabratus (Cotoneaster) · C. glaucophyllus (Bright Bead Cotoneaster) · C. granatensis (Durillo) · C. harrysmithii (Harrysmith Cotoneaster) · C. henryanus (Henrys Cotoneaster) · C. horizontalis (Cotoneaster) · C. horizontalis var. perpusillus (Prostrate Rock Cotoneaster) · C. horizontalis 'Variegatus' (Cotoneaster) · C. hupehensis (Hupeh Cotoneaster) · C. hylmoei (Cotoneaster) · C. integerrimus (Cotoneaster) · C. integrifolius (Small-Leaf Cotoneaster) · C. lacteus (Milkflower Cotoneaster) · C. lucidus (Hedge Cotoneaster) · C. microphyllus (Chinese Rockspray) · C. microphyllus 'Cooperi' (Chinese Rockspray) · C. multiflora (Cotoneaster) · C. multiflorus (Many-Flowered Cotoneaster) · C. nanshan (Creeping Cotoneaster) · C. niger (Dark-Seed Cotoneaster) · C. pannosus (Cotoneaster) · C. radicans (Bearberry Cotoneaster) · C. salicifolius (Cotoneaster) · C. salicifolius 'Repens' (Spreading Willowleaf Cotoneaster) · C. salicifolius 'Scarlet Leader' (Willow-Leaf Cotoneaster) · C. salicifolus (Willowleaf Cotoneaster) · C. serotinus (Cotoneaster) · C. simonsii (Himalayan Cotoneaster) · C. splendens (Splendid Cotoneaster) · C. sternianus (Cotoneaster) · C. tomentosus (Hairy Cotoneaster) · C. wilsonii (Cotoneaster) · C. x waterei 'John Waterer' (Cotoneaster) · C. 'Cornubia' (Cotoneaster) · C. 'Hybridus Pendulus' (Weeping Cotoneaster) · C. 'Rothschildianus' (Cotoneaster)

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Cuizhi Gu, Chaoluan Li, Lingdi Lu, Shunyuan Jiang, Crinan Alexander, Bruce Bartholomew, Anthony R. Brach, David E. Boufford, Hiroshi Ikeda, Hideaki Ohba, Kenneth R. Robertson & Steven A. Spongberg "Rosaceae". in Flora of China Vol. 9 Page 46. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Lu Ling-ti, Anthony R. Brach "Cotoneaster". in Flora of China Vol. 9 Page 85. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. "Cotoneaster". in Flora of China Vol. 9 Page 99. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  4. Mean = 3,399.410 meters (11,152.920 feet), Standard Deviation = 1,445.030 based on 34 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012