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Pterocarya stenoptera C.Dc.

Chinese wingnut (en), Ptérocarier (fr)

Species

Angiosperms > Fagales > Juglandaceae > Pterocarya

Characteristics

Trees to 30 m tall. Leaves even-pinnate, rarely odd-pinnate, 8-16(-25) cm; petiole 2-6.5 cm, sparsely pubescent; rachis often winged or sometimes only ridged or sulcate on some leaves, sparsely pubescent to tomentose; leaflets (6-)11-21(-25), sessile, long elliptic to elliptic-lanceolate, 8-12 × 2-3 cm, abaxially slightly pubescent, base oblique, cuneate or broadly cuneate, apex obtuse or acute. Fruiting spike 20-45 cm, axis pubescent at first but becoming nearly glabrous. Nutlets long ellipsoid, 6-7 mm, slightly pubescent to glabrescent; wings linear, 1.2-2.5 × 3-6 mm. Fl. Apr-May, fr. Aug-Sep. 2n = 32.
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A deciduous tree. It grows to 25-30 m high. The bark is grey-brown and develops deep cracks. The leaves have an even number of leaflets along the stalk. The leaf is 8-16 cm long. The leaf stalk is 2-6.5 cm long. There can be a few hairs and the leaf stalk is ridged or winged. There are normally 11-21 leaflets. These are 8-12 cm long by 2-3 cm wide. The male and female flowers are in separate hanging catkins on the same plant. The male catkins are 6 cm long. The fruiting spike is 20-45 cm long. The nutlets are a long oval shape and 6-7 mm long.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) 8.25
Mature height (meter) 20.0
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 c3

Environment

Mixed deciduous forests on mountain slopes or riverbanks, often forming pure stands in small patches in the openings of deciduous oak forests, from sea level to 1500 metres.
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It is native to China. It grows in forest on mountain slopes and near rivers from sea level to 1500 m altitude. It suits hardiness zones 7-9.
Light 6-8
Soil humidity 4-7
Soil texture 2-4
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-9

Usage

Uses environmental use experimental purposes fodder food gene source insecticide medicinal
Edible fruits nuts
Therapeutic use Carminative (unspecified), Conjunctivitis (unspecified), Dysentery (unspecified), Fever (unspecified), Anasarca (unspecified), Tea (unspecified), Astringent (unspecified), Sore (unspecified), Vermifuge (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Habit

Pterocarya stenoptera habit picture by Dieter Albrecht (cc-by-sa)

Leaf

Pterocarya stenoptera leaf picture by Kenneth Parker (cc-by-sa)
Pterocarya stenoptera leaf picture by Kenneth Parker (cc-by-sa)
Pterocarya stenoptera leaf picture by Vera Vera (cc-by-sa)

Fruit

Pterocarya stenoptera fruit picture by Dieter Albrecht (cc-by-sa)
Pterocarya stenoptera fruit picture by Dieter Albrecht (cc-by-sa)
Pterocarya stenoptera fruit picture by Dieter Albrecht (cc-by-sa)

Distribution

Pterocarya stenoptera world distribution map, present in Azerbaijan, China, Spain, Korea (Republic of), Lao People's Democratic Republic, Tajikistan, Taiwan, Province of China, United States of America, Viet Nam, and South Africa

Conservation status

Pterocarya stenoptera threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:442489-1
WFO ID wfo-0001067510
COL ID 6WKWB
BDTFX ID 120946
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acer mairei Pterocarya laevigata Pterocarya japonica Pterocarya esquirolii Pterocarya chinensis Pterocarya stenoptera var. kouitchensis Pterocarya stenoptera var. sinensis Pterocarya stenoptera var. brevialata Pterocarya stenoptera var. zhijiangensis Pterocarya stenoptera
WorldFloraDB 2024