Sorbus sargentiana Koehne

Sargent's rowan (en)

Species

Angiosperms > Rosales > Rosaceae > Sorbus

Characteristics

Trees 6–10 m tall. Branchlets grayish brown when young, dark gray when old, terete, grayish white tomentose, with numerous elliptic lenticels; buds narrowly ovoid, 1–1.7 cm, apex acute; scales many, brown, sparsely pubescent. Leaves imparipinnate, together with rachis 18–28 cm; petiole 5–6 cm; stipules persistent, semiorbicular, 1–2 cm in diam., margin sharply serrate; rachis adaxially shallowly sulcate, slightly winged, grayish white tomentose; leaflet blades 3–5 pairs, at intervals of 2.5–3.2 cm, terminal and basal leaflets smaller than others, elliptic-lanceolate, 7–13 × 2–4.2 cm, lateral veins 20–35 pairs, arcuate-anastomosing, abaxially initially densely tomentose, gradually glabrescent, with sparse hairs persisting only along veins, adaxially sparsely pubescent, glabrescent, base rounded or obliquely cordate, margin sharply serrate, with 28–52 teeth per side, entire on basal 1/4, apex acuminate, rarely acute. Inflorescences 8–11 × 9–15 cm, densely flowered; rachis and pedicels grayish white tomentose, gradually glabrescent, with oblong lenticels; bracts linear-lanceolate. Pedicel 1–3 mm. Flowers 5–7 mm in diam. Hypanthium campanulate, 1–1.4 mm, abaxially tomentose. Sepals triangular, 1–2(–2.5) mm, shorter than petals, apex acute or ± obtuse. Petals white, broadly ovate, 2.5–3.5 × 2–3 mm, glabrous, apex obtuse. Stamens ca. 20, shorter than petals. Styles 3 or 4(or 5), not exceeding stamens, grayish white tomentose basally. Fruit red, globose, 5–6 mm in diam.; sepals persistent, erect. Fl. May–Jun, fr. Oct–Nov. 2n = 34*.
Life form annual
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 6.0 - 10.0
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

Light 4-9
Soil humidity 3-7
Soil texture 3-4
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 6-8

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°) -23
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Sorbus sargentiana unspecified picture

Distribution

Sorbus sargentiana world distribution map, present in China

Conservation status

Sorbus sargentiana threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:741958-1
WFO ID wfo-0000996660
COL ID 4YBMM
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Sorbus sargentiana Pyrus sargentiana