Euphorbia davyi N.E.Br.

Species

Angiosperms > Malpighiales > Euphorbiaceae > Euphorbia

Characteristics

Plant: a dwarf succulent, spineless but with persistent remains of the peduncles; main stem a continuation of the somewhat thickened main root and partly buried in the ground, but not forming a fleshy central body, producing laterally from near the base a number of branches, which usually rebranch 2 or 3 times and all (including the elongated main stem) are of uniform thickness at their upper part and attain a nearly even height or distance from the root, thus forming together a somewhat obconic mass about 20 to 25 cm in diameter; branches up to 15 cm long, the flowering ones about 1.2 cm thick, cylindric, covered with crowded tubercles; tubercles rhomboid, 4 to 5 mm long and about equally broad, 1 to 1.2 mm prominent at the central leaf-scarred apex, not recurved; Leaves: produced in a small tuft at the apex of the growing branches, soon deciduous, recurved-spreading, 4 to 6 mm or perhaps more long, linear-lanceolate, longitudinally folded on the upper side; Inflorescence: cyathia solitary, produced 3 to 5 around the apex of each flowering branch on peduncles arising from the axils of the tubercles; peduncles about 4 mm long, becoming elongated in the fruiting stage to from 0.5 to 1.7 cm long, bearing a number of bracts, ultimately withering and persisting; bracts about 2 mm long, suboblong, ciliate, the upper 3 or 4 forming an irregular whorl 1.5 to 2 mm below the involucre; involucre cup-shaped, about 6 mm in diameter including the glands, with 5 glands and 5 subquadrate, lacerate, ciliate lobes; glands distant, 1 to 1.5 mm in their greater diameter, crescent-shaped, subsessile, minutely punctate on the upper surface, with 2 to 4 somewhat reflexed processes along the outer margin; Pistillate flower: ovary sessile, pilose on the upper part; styles 1.5 mm long, united at the base into a short column for about one-third of their length, free above, the free portion about 1 mm long, grooved along the upper surface, with slightly expanded tips.
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Dwarf succulent, up to 150 mm high; spineless, main stem rising 20-40 mm above ground level. Branches cylindric, ± 150 mm long, 15-20 mm thick when dry, branching from base, rebranching 2 x or 3 x, forming obconic body, 200-250 mm in diameter. Leaves 4-6 mm, in small tufts at apex, soon deciduous. Flowers: cyathia solitary; peduncles ± 4 mm long (5-17 mm long in fruit), sometimes persistent; involucre 6 mm in diameter; involucral glands 5, crescent-shaped, with 2-4 reflexed processes.
Dwarf succulent, up to 100 mm tall, spineless but with occasional, persistent remains of peduncles. Branches up to 150 mm long, 12-20 mm thick. Peduncles 2-5 mm long. Flowers yellow.
Life form -
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.13
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 6-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

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

Cultivation

Mode -
Germination duration (days) 10 - 15
Germination temperacture (C°) 21 - 26
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Euphorbia davyi world distribution map, present in Botswana, Namibia, South Africa, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:346225-1
WFO ID wfo-0000961655
COL ID 6GZ77
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Euphorbia pseudoduseimata Euphorbia pseudohypogaea Euphorbia bergii Euphorbia davyi