Sorbus dunnii Rehder

Species

Angiosperms > Rosales > Rosaceae > Sorbus

Characteristics

Trees small, 2–7 m tall. Branchlets brownish purple when young, brown or grayish brown when old, terete, yellow pubescent when young, glabrate, minutely lenticellate; buds ovoid, 5–8(–10) mm, apex acuminate; scales several, brown, glabrous. Leaves simple; petiole 1.5–2.5 cm, brown tomentose, gradually glabrescent; leaf blade elliptic or oblong, 6–10(–15) × 3–5(–8) cm, lateral veins (10–)14–18 pairs, terminating in marginal teeth, abaxially densely yellowish white tomentose and brown tomentose along veins, adaxially glabrous but brown tomentose along veins, base broadly cuneate, margin irregularly serrate, apex acute or shortly acuminate. Compound corymbs much branched in distal part, 4–7 × 5–7 cm, densely flowered; rachis and pedicels rusty brown tomentose, gradually glabrescent, with many small lenticels. Pedicel 3–6 mm. Flowers 7–10 mm. Hypanthium turbinate, abaxially densely rusty brown tomentose. Sepals triangular-ovate, 1.5–2 mm, apex acute. Petals white, broadly ovate, 3–4 mm, glabrous, base shortly clawed, apex ± acute. Stamens 20, unequal in length, longer ones longer than petals. Styles 2, connate at base, glabrous. Fruit red, subglobose, 5–8 mm in diam., 2-loculed, without or with few small lenticels; seeds blackish, lanceolate-obovate, 3–4 mm. Fl. Apr–May, fr. Aug–Sep.
Life form
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 2.5 - 4.0
Mature height (meter) 3.0 - 7.5
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 c3

Environment

Light 4-9
Soil humidity -
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 9-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, graftings or seedlings. Seeds needs stratification.
Mode cuttings graftings seedlings
Germination duration (days) 120 - 180
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Sorbus dunnii world distribution map, present in China

Conservation status

Sorbus dunnii threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:741718-1
WFO ID wfo-0001016358
COL ID 4YBC7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Aria dunnii Sorbus dunnii