Euphorbia bravoana
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Euphorbia bravoana |
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Euphorbia bravoana is a species of the genus milkweed ( Euphorbia ) in the family of the milkweed family(Euphorbiaceae).
description
The succulent Euphorbia bravoana forms many branched shrubs up to 2 meters high. The main shoot reaches a diameter of 4 centimeters. The thick branches are bent upwards and covered with transverse leaf scars. The linear-lanceolate leaves are close together in rosettes on the shoots. The leaf blade is colored glaucous and often provided with a purple coating. The edges are whitish and the tip of the leaf is rounded.
The inflorescence is formed from terminal cymes and is just as long as the leaves. The cymen consist of four to eight-rayed umbels, each ray of which forms another two to four rays. The broad, egg-shaped bracts are colored purple and fused together at the base. The up to 9 millimeters large cyathia are enclosed by the bracts and almost sessile. The nectar glands are elliptical in shape. The bluntly lobed fruit is about 8 millimeters in size and stands on a protruding stem. The conical-egg-shaped seed is up to 4 millimeters in size and has a conical appendage . The seed surface is covered with warts.
Distribution and systematics
Euphorbia bravoana is endemic to the northeast of La Gomera in shady locations on rocks.
The species was first described in 1954 by Erik Ragnar Svensson .
swell
- Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 122 .
Individual evidence
- ^ Boletin del Instituto (Nacional) de Investigaciones Agronomicas. Volume 14, number 30, pp. 29-31 Madrid 1954
Web links
- Photos of plants at botany.cz