Euphorbia barnardii
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Euphorbia barnardii |
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| Scientific name | ||||||||||||
| Euphorbia barnardii | ||||||||||||
| ACWhite , RADyer & B.Sloane |
Euphorbia barnardii is a species of the genus milkweed ( Euphorbia ) in the family of the milkweed family(Euphorbiaceae).
description
The succulent Euphorbia barnardii forms small shrubs up to 75 centimeters in height. A large number of above-ground branches are formed from a tuberous root that turns into shoots below the surface of the earth. These are five- to six-sided and with constrictions divided into 10 cm long and 7 cm wide sections. The slightly winged edges are set with flat teeth, which are at a distance of 1 centimeter from each other. The united thorn shields form a horn edge. It developed thorns up to 1 centimeter long. The stipule spines are very small and there are other very small spines on both sides of the inflorescences.
The inflorescence consists of single and simple cymes , which stand on 1 millimeter long stems. The cyathia are up to 9 millimeters in size. The elongated nectar glands are colored yellow and touch each other. The bluntly lobed fruit is almost sessile and becomes 9 millimeters in size. Nothing is known about the seed.
Habitus
blossoms
unripe fruits
Distribution and systematics
Euphorbia barnardii is distributed in South Africa in the Mpumalanga province in the Mashishing area on dry, sandy soils at altitudes of 900 to 1100 meters.
The species was first described in 1941 by Alain Campbell White , Robert Allen Dyer and Boyd Lincoln Sloane .
swell
- Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 118 .
Individual evidence
- ^ The Succulent Euphorbieae (Southern Africa). Volume 2, p. 804, Appendix A, p. 965 Pasadena, California 1941
Web links
- Description and photos of the species at the South African National Biodiversity Institute (SANBI)