Hydrangea davidii Franch.

Species

Angiosperms > Cornales > Hydrangeaceae > Hydrangea

Characteristics

Shrubs 1-3 m tall. First year's branchlets brown to dark red-brown, densely yellowish pubescent when young, glabrescent. Second year's branchlets yellowish brown; bark peeled off into irregular fragments. Petiole 1-1.5 cm, slightly crisped pubescent to long pilose; leaf blade abaxially yellow-green and adaxially yellow-brown when dry, oblong to narrowly elliptic, 7-15 × 2-4.5 cm, papery, abaxially subglabrous except pilose along veins and fasciculate pubescent at vein axils, adaxially sparsely minutely strigose with hairs denser and slightly crisped along veins, base cuneate to subacute, margin roughly serrate to serrulate, apex caudate-acuminate. Inflorescences corymbose cymes, 7-10 cm wide, to 14 cm wide in fruit, apex slightly arcuate to truncate; branches 3, unequal with central one usually longer and thicker, densely yellow-brown pubescent. Sterile flowers with sepals 3 or 4, broadly ovate, triangular-ovate, or broadly orbicular, unequal, larger ones 1.3-2.3 × 1.1-3 cm, margin entire or few denticulate, apex subrounded to subacute. Fertile flowers with calyx tube cupular, ca. 1 × 1.5 mm; teeth narrowly lanceolate to triangular-ovate, 0.5-1.5 mm. Petals deep blue, narrowly elliptic to obovate, 2.5-4 × ca. 1 mm, base with a claw 0.5-1 mm, apex obtuse to acuminate. Stamens 8-10, subequal, 1.5-2.5 mm, longer ones not inflexed in bud; anthers broadly oblong to subglobose, 0.5-0.8 mm. Ovary ca. 1/2 superior. Styles 3 or 4, curved outward, 1.5-2 mm in fruit; stigmas enlarged, decurrent along style adaxially. Capsule subglobose, 2.5-3.5 mm in diam., projected apical part 1.2-2 mm, equaling calyx tube. Seeds brownish, obovoid to ellipsoid, 0.5-0.6 mm, wingless; seed coat net veined. Fl. Apr-Jun, fr. Sep-Oct.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.5 - 1.0
Mature height (meter) 1.0 - 1.5
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 -

Environment

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

Usage

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

Cultivation

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

Distribution

Hydrangea davidii world distribution map, present in China and Myanmar

Identifiers

LSID urn:lsid:ipni.org:names:791576-1
WFO ID wfo-0001219189
COL ID 6MJ7H
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hydrangea davidii Hydrangea arbostiana Hydrangea yunnanensis Hydrangea davidii var. arbostiana