Euphorbia joyae P.R.O.Bally & S.Carter

Species

Angiosperms > Malpighiales > Euphorbiaceae > Euphorbia

Characteristics

Much-branched, spreading, woody shrub to 2.5 m. high, with greyish brown bark; young branches puberulous.. Leaves alternate, occasionally fasciculate, petiolate, obovate to panduriform, to 5 × 3 cm., base rounded, apex truncate to shallowly emarginate, lamina pubescent, sparsely so at maturity, midrib prominent beneath; petiole to 8 mm. long; stipules filamentous to 1 mm. long.. Cymes terminal, consisting of a central cyathium with (2–)3 lateral cyathia on pubescent rays to 3 cm. long, forking once; bracts sessile, obovate, ± 1.5 × 1 cm., pubescent beneath, greenish yellow.. Cyathia sessile, or the central one on a peduncle ± 2 (–10) mm. long, ± 5.5 × 10 mm., with minutely pubescent cup-shaped involucres; glands 5, spreading, transversely elliptic, ± 2.5 × 3.5 mm., flat to very shallowly saucer-shaped, yellow; lobes transversely elliptic, ± 1.5 × 3 mm., margin fringed.. Male flowers many: bracteoles fan-shaped, deeply divided, apices feathery; stamens ± 6.5 mm. long, anther-thecae shortly pilose.. Female flower: ovary densely pubescent, sessile; styles ± 6 mm. long, pubescent, joined up to halfway, with spreading, deeply bifid, thickened apices.. Capsule subglobose, pubescent, ± 8 mm. in diameter.. Seeds ovoid, angular, with truncate base, ± 3 × 4 mm., smooth, pale grey.. Fig. 87/1–3.
Life form -
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.25
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Sandy gravelly soils and lava; with open Acacia-Commiphora bushland; at elevations from 180-750 metres.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

Can be grown by seedlings. Seeds needs soaking.
Mode seedlings
Germination duration (days) 10 - 15
Germination temperacture (C°) 21 - 26
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
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Vigor -
Productivity -

Distribution

Euphorbia joyae world distribution map, present in Kenya

Conservation status

Euphorbia joyae threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:906076-1
WFO ID wfo-0000962815
COL ID 3CPBY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Euphorbia joyae