Pyrus bretschneideri Rehder

Species

Angiosperms > Rosales > Rosaceae > Pyrus

Characteristics

Trees to 5–8 m tall. Branchlets purplish brown when old, terete, robust, densely pubescent when young, glabrous when old, sparsely lenticellate; buds dark purple, ovoid, apex obtuse; scales pubescent at margin and apex. Stipules caducous, linear or linear-lanceolate, 1–1.3 cm, membranous, pubescent, margin glandular denticulate, apex acuminate; petiole 2.5–7 cm, densely tomentose when young, soon glabrescent; leaf blade ovate or elliptic-ovate, 5–11 × 3.5–6 cm, both surfaces tomentose when young, soon glabrescent, base broadly cuneate, rarely subrounded, margin spinulose-serrate, apex acuminate, rarely acute. Raceme umbel-like, 7–10-flowered; peduncle tomentose when young, soon glabrescent; bracts caducous, linear, 1–1.5 cm, membranous, adaxially brown tomentose, margin entire, apex acuminate. Pedicel 1.5–3 cm, pubescent when young. Flowers 2–3.5 cm in diam. Hypanthium cupular, slightly pubescent when young. Sepals triangular, 3.5–5 mm, abaxially glabrous, adaxially brown tomentose, margin glandular denticulate, apex acuminate. Petals white, ovate, 1.2–1.4 × 1–1.2 cm, base shortly clawed, apex rounded. Stamens 20, ca. 1/2 as long as petals. Ovary 5-or 4-loculed, with 2 ovules per locule; styles 5 or 4, ca. as long as stamens, glabrous. Pome yellow, with fine dots, ovoid or subglobose, 2–2.5 cm. in diam., 4-or 5-loculed; sepals caducous; fruiting pedicel 1.5–3 cm, glabrous. Fl. Apr, fr. Aug–Sep. 2n = 34*, 51*, 68*.
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A small tree. It grows 5-8 m high. The young branches are stout and hairy. The leaves are narrowly oval and 5-11 cm long by 4-6 cm wide. They taper to the tip and are rounded at the base. There are sharp teeth. The leaf stalks are 3 cm long. The flowers are white. The fruit are round and 3 cm long. They are yellow. The flesh is crisp. There are some local cultivars.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 5.5 - 7.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a temperate plant. It is native to northern and north western China. It grows in dry cold regions between 100-2,000 m above sea level. It suits hardiness zones 4-9.
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Slopes, dry cold regions; at elevations from 100-2,000 metres.
Light 6-9
Soil humidity 4-6
Soil texture 2-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 5-7

Usage

Uses breeding food gene source medicinal
Edible fruits
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Pyrus bretschneideri unspecified picture

Distribution

Pyrus bretschneideri world distribution map, present in China and Cook Islands

Identifiers

LSID urn:lsid:ipni.org:names:730733-1
WFO ID wfo-0001016379
COL ID 4QWKH
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Pyrus bretschneideri