Euphorbia wallichii Hook.F.

Species

Angiosperms > Malpighiales > Euphorbiaceae > Euphorbia

Characteristics

Herbs, up to 100 cm tall. Root terete, up to 50 × 5 cm. Stems single or several clustered, few branched basally, ca. 1.2 cm, upper parts many branched, smooth and glabrous. Leaves alternate, larger toward apex; stipules absent; petiole absent or nearly so; leaf blade elliptic, long elliptic, or ovate-lanceolate, 5-10 × 1.2-2.9 cm, base attenuate, rounded, or subtruncate, margin entire, apex acuminate to subacute; midrib prominent on both surfaces, lateral veins ca. 7 pairs, dividing before margin. Inflorescence a compact terminal pseudumbel; primary involucral leaves (3-)5(-7), yellow or yellow-green, usually ovate, occasionally ovate-elliptic or oblong, 4-6 × 2-3.5 cm, base rounded or subtruncate, apex obtuse to acute, primary rays (3-)5(-7), up to 5 cm, shorter than involucre; secondary involucral leaves usually 3, ovate to broadly ovate, 2.5-3.5 × 1-2 cm; cyathophylls 2, similar to secondary involucral leaves, base subtruncate, apex acuminate. Cyathium sessile or shortly stipitate; involucre broadly campanulate, ca. 5 × 6-7 mm, exterior shortly brown pilose, lobes rounded, apex irregularly lacerate, densely white pilose inside; glands 4, pale brown to yellow-brown, reniform-rounded. Male flowers many, exserted from involucre, conspicuous. Female flower: ovary pedicel up to 3-5 mm; styles free, falling easily; style arms 2-lobed. Capsule 3-lobed, 9-11 × 9-11 mm, glabrous. Seeds angulate-terete, 5-6 × 4-5 mm, light brown to gray-brown, adaxially striate; caruncle peltate, extremely shortly stipitate. Fl. and fr. May-Aug (or Sep).
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.55 - 1.0
Root system -
Rooting depth (meter) 0.2
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Alpine meadows, slopes, forest margins; at elevations from 1,800-4,700 metres.
Light 5-9
Soil humidity 5-7
Soil texture 1-2
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 8-10

Usage

Uses medicinal
Edible -
Therapeutic use Constipation (leaf), Anti-infective agents (unspecified), Fistula (unspecified), Skin diseases (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, divisions or seedlings. Seeds needs soaking.
Mode cuttings divisions seedlings
Germination duration (days) 10 - 15
Germination temperacture (C°) 13 - 16
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Euphorbia wallichii unspecified picture
Euphorbia wallichii unspecified picture

Distribution

Euphorbia wallichii world distribution map, present in Afghanistan, China, India, Lao People's Democratic Republic, Nepal, and Pakistan

Identifiers

LSID urn:lsid:ipni.org:names:348725-1
WFO ID wfo-0000965397
COL ID 3CR8J
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Tithymalus wallichii Euphorbia wallichii Euphorbia yunnanensis Euphorbia duclouxii Euphorbia wallichii subsp. duclouxii