Euphorbia tongchuanensis C.Y.Wu & J.S.Ma

Species

Angiosperms > Malpighiales > Euphorbiaceae > Euphorbia

Characteristics

Herbs, erect, up to 35 cm tall. Root fibrous, brown, 5-10 cm × 3-4 mm. Stem single, ca. 4 mm thick, unbranched. Leaves alternate; stipules absent; petiole absent; leaf blade linear-oblanceolate, 9-12 cm × 4-8 mm, abaxially light gray when dry; adaxially green, base attenuate, margin entire, apex acuminate; midrib prominent on both surfaces, lateral veins inconspicuous. Primary involucral leaves 3 or 4, long elliptic, 1-2 × 0.3-0.5 cm, base subtruncate, apex acuminate, primary rays 3 or 4, 1-2 cm; cyathophylls 2, ovate or triangular-ovate, 4-6 × 4-5 mm, base subtruncate or subemarginate, apex acuminate. Cyathium sessile; involucre cuplike, ca. 3 × 2.5 mm, pilose outside, light yellow, lobes triangular-rounded, white pilose at margin and inside; glands 4, subinfundibular, concave at middle, adaxially lower, abaxially higher, apex 2-horned. Bracteoles linear. Male flowers many. Female flower: ovary exserted from cup, densely micropunctate, glabrous; styles connate below middle; style arms 2-lobed. Fruit and seeds not seen. Fl. Oct.
Life form -
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.35
Root system fibrous-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Usage

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

Cultivation

Mode -
Germination duration (days) 10 - 15
Germination temperacture (C°) 21 - 26
Germination luminosity -
Germination treatment soaking
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Optimum temperature (C°) -
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Distribution

Euphorbia tongchuanensis world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:971510-1
WFO ID wfo-0000965132
COL ID 3CQZW
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Euphorbia tongchuanensis