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Photinia villosa

(Oriental Photinia)

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:

Ji Ding Zi

Common Names in English:

Oriental Photinia

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 Photinia

Trees or shrubs , deciduous or evergreen . Winter buds small; scales imbricate, few. Leaves alternate, simple , papery or leathery, venation camptodromous , margin serrate, rarely entire, shortly petiolate ; stipules present, usually subulate . Inflorescences terminal , umbellate or corymbose , rarely shortly paniculate , many flowered, sometimes flowers 2- or 3-clustered or solitary. Hypanthium cupular or campanulate to cylindric , adnate to ovary or free near apex. Sepals 5, persistent , short. Petals 5, contorted or imbricate in bud, base clawed. Stamens usually ca. 20. Carpels 2-5, rarely 1; ovary semi-inferior, (1 or) 2-5-loculed, in fruit free apically or to 1/3 length ; styles(1 or) 2-5, free or ± connate , short, dilated apically; stigmas truncate ; ovules 2 per locule, erect . Fruit a pome, globose , ovoid , or ellipsoid , somewhat fleshy , (1- or) 2-5-loculed, free from calyx only near apex or to 1/3 length, with persistent, incurved sepals; carpel crustaceous or membranous, each locule 1- or 2-seeded; seeds erect, testa leathery; cotyledons plano-convex .

About 60 species: E, S, and SE Asia, also in Mexico; 43 species (32 endemic) in China.

Wu Zhengyi (editor's note ) believes that Pourthiaea is morphologically distinct from Photinia and should be treated as a separate genus.

Many species of Photinia are ornamental trees and shrubs with large lustrous leaves and attractive white flowers in the spring followed by red fruits in the autumn. The wood is hard and heavy, suitable for making furniture and other small articles.[2]

Physical Description

Species Photinia villosa

Shrubs or trees , deciduous, 2-5 m tall. Branchlets dark brown to reddish brown when young, grayish brown when old, initially white villous , glabrous when old, with scattered oblong or elliptic lenticels ; buds ovoid , 2-4 mm, apex acute to shortly acuminate; scales brown, glabrous. Petiole 2-6 mm, villous; leaf blade obovate , oblong-obovate, or elliptic, 3-8 × 2-4 cm, herbaceous, veins 5-7 pairs, both surfaces initially white villous, glabrescent or subglabrous adaxially and villous only along veins abaxially, base cuneate, margin densely sharply serrate apically, apex caudate . Inflorescences terminal , corymbose , rarely umbellate , 2-5 × 3-6 cm, (5-) 10-20- or more flowered; rachis and pedicels villous, with dense, oblong or elliptic small lenticels in fruit; bracts caducous , subulate or linear , 2-4 mm. Pedicel 1.5-2.5 cm. Flowers 7-12 mm. Hypanthium cupular, 2-3 mm, abaxially white villous or glabrous. Sepals triangular-ovate, 2-3 mm, apex obtuse . Petals white, suborbicular , 4-5 mm in diam., adaxially pilose near base, shortly clawed. Stamens 20, shorter than petals. Ovary densely white villous apically; styles 3, free from middle , glabrous. Fruit red or yellowish red, ellipsoid or ovoid, 8-10(-16) × 6-8(-11) mm, slightly pilose ; sepals erect . Fl. Apr-May, fr. Aug-Sep. [source]

ID Features: Sessile, ovoid buds. No terminal buds. Alternate leaf arrangement. Simple, deciduous leaves. Gland-tipped serrations on leaf margins. White flowers. 2-ranked leaf scars.

Habit: A vase-shaped deciduous tree or large shrub with an irregular, ovoid crown.

Flowers: White flowers. 0.3" in diameter. Blooms in late May. Flowers borne in 2" corymbs. Terminal . • Bloom Period: March. • Flower Color: near white, white

Seeds: Fruit: Red pomes. Oval , 0.3" long. Matures in October. Persist. Attracts wildlife.

Foliage: Summer foliage: Alternate arranged leaves. Simple , deciduous leaves. 1.5" to 3" long. Pale gold new growth. Sharply serrated leaf margins . Gland-tipped serrations . Dark green leaf color. • Fall foliage: Bronzy red fall color. Showy.

Size/Age/Growth

Growth Rate: Moderate. • Size: 10' to 15' tall with an equal spread .

Landscaping

Landscape Uses: Specimen. Border . Background. Fruit and fall color. • Liabilities: Fireblight. Leaf spot. Powdery mildew .

Habitat

Slopes , forests , thickets, stream sides, roadsides, waste places; 100--1600 m. [3].

Hardy to zone 4.

Typically found at an altitude of 0 to 1,158 meters (0 to 3,799 feet).[4]

Biology

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Reproduction

Duration: Perennial

Growth

Culture: Transplant from B&B. Prefers well-drained, acidic soil. Full sun . Rarely needs pruning.

Soil: Minimum pH: 5.6 • Maximum pH: 7.8

Sunlight: Sun Exposure: Full sun to partial shade.

Temperature: Cold Hardiness: 4b. (map)

Taxonomy

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Synonyms

Photinia villosa var. typica C. K. Schneid. • Pourthiaea brunnea (H. Lév.) Nakai • Pourthiaea cotoneaster Decne. • Pourthiaea laevis var. albescens (H. Lév.) Nakai • Pourthiaea villosa var. brunnea (H. Lév.) Nakai • Pourthiaea villosa var. typica (C. K. Schneid.) Nakai • Pyrus brunnea H. Lév. (1912) • Pyrus spectabilis var. albescens H. Lév. • Sorbus Terminalis • Sorbus villosa Zabel • Stranvaesia digyna Siebold & Zucc.

Notes

Name Status: Accepted Name .

Similar Species

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Members of the genus Photinia

ZipcodeZoo has pages for 19 species, subspecies, varieties, forms, and cultivars in this genus:

P. beauverdiana (Photinia) · P. davidiana (Chinese Photinia) · P. davidiana 'Palette' (Chinese Photinia) · P. floribunda (Purple Chokeberry) · P. fraseri (Fraser's Photinia) · P. glabra (Japanese Photinia) · P. melanocarpa (Black Chokeberry) · P. melanocarpa var. Elata (Black Chokeberry) · P. melanocarpa 'Morton' (Black Chokeberry) · P. pyriflora (Red Chokeberry) · P. pyrifolia (Black Witch) · P. serratifolia (Chinese Hawthorn) · P. serrulata 'Aculeata' (Chinese Hawthorn) · P. villosa (Oriental Photinia) · P. x fraseri (Fraser Photinia) · P. × fraseri 'Cassini' (Pink Marble Photinia) · P. x fraseri 'Pink Marble' (Pink Marble Photinia) · P. x fraseri 'Pointe Du Raz' (Fraser Photinia) · P. x fraseri 'Red Robin' (Fraser Photinia)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal December 06, 2007:

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, Stephen A. Spongberg "Photinia". in Flora of China Vol. 9 Page 121. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. "Photinia". in Flora of China Vol. 9 Page 134. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  4. Mean = 405.210 meters (1,329.429 feet), Standard Deviation = 415.140 based on 14 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012