Acer davidii Franch.

Père david's maple (en), Érable de David au sens large (fr)

Species

Angiosperms > Sapindales > Sapindaceae > Acer

Characteristics

Trees ca. 10 m tall, andromonoecious, but often with an androdioecious sex expression. Bark gray-brown. Branchlets brownish green or greenish purple, glabrous; winter buds oblong, small, glabrous, scales 2 pairs. Leaves deciduous; petioles 3-6 cm, rufous pubescent when young; leaf blade abaxially pale green, adaxially dark green, ovate, ovate-oblong, or suborbicular-ovate, (6-)8-12(-14) × (4-)5-8(-9) cm, papery, abaxially rufous pubescent on veins when young, glabrescent when mature, adaxially glabrous, veins 10-13 pairs, base subcordate or rounded, margin undivided or (3 or)5-lobed, serrulate or doubly serrate, apex acuminate or rarely caudate-acuminate; lobes apically obtuse or middle lobe triangular and lateral and basal lobes apically acute. Flowers greenish yellow. Inflorescence pendulous, racemose. Pedicel 1-1.5 cm, slender. Sepals 5, elliptic, ca. 4 mm, apex obtuse. Petals 5, obovate, ca. 4 mm. Stamens 8, ca. 3 mm, glabrous; anthers yellow. Disk glabrous, lobes intrastaminal. Ovary rudimentary. Fruit brownish yellow; nutlets flat, 8-10 × ca. 6 mm; wing including nutlet 2.5-2.8 cm, wings spreading horizontally or obtusely. Fl. Mar-Apr, fr. Sep. 2n = 26.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality
Pollination -
Spread -
Mature width (meter) 2.5
Mature height (meter) 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.4
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 3-6
Soil texture 3-4
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 6-9

Usage

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

Cultivation

Can be grown by cuttings or graftings. Seeds needs soaking.
Mode cuttings graftings
Germination duration (days) 30 - 365
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -23
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Acer davidii unspecified picture

Distribution

Acer davidii world distribution map, present in China and Myanmar

Conservation status

Acer davidii threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:781279-1
WFO ID wfo-0000514174
COL ID 948G
BDTFX ID 127
INPN ID 79742
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Acer cavaleriei Acer horizontale Acer davidii Acer davidii var. grandifolium Acer davidii var. horizontale Acer laxiflorum var. ningpoense Acer davidii var. tomentellum Acer davidii var. glabrescens Acer davidii var. acuminatifolium Acer sikkimense subsp. davidii Acer davidii f. glabrescens Acer davidii subsp. davidii

Lower taxons

Acer davidii subsp. grosseri