Euphorbia avasmontana
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Euphorbia avasmontana is a species of the genus spurge ( Euphorbia ) in the family of Euphorbiaceae (Euphorbiaceae).
description
The succulent Euphorbia avasmontana forms shrubs up to 2 meters high and about 2 meters in diameter. The shoots that emerge in large numbers from the base and are usually pentagonal are simple and upright. They are constricted into elongated, about 13 centimeters long and 7 centimeters wide, sections and provided on the edges with flat teeth that are 1 centimeter apart. Thorns up to 1 centimeter long are formed and the thorn shields are combined to form a horn edge.
The inflorescence is formed from two to three simple and almost sedentary cymes , which are in a horizontal line. The cyathia are about 8 millimeters in size and the elongated nectar glands meet and are colored yellow. The bluntly lobed fruit grows up to 6 millimeters in size and has a 6 millimeter long stem. The spherical seed is smooth and reaches 1.7 millimeters in diameter.
Habitus
Shoot tip
blossoms
Distribution and systematics
Euphorbia avasmontana is distributed in the south of Namibia and in the northwest of South Africa.
The species was first described in 1928 by Kurt Dinter .
A distinction is made between the following varieties:
- Euphorbia avasmontana var. Avasmontana ( Syn: Euphorbia kalaharica (Marloth) (1930))
- Euphorbia avasmontana var. Sagittaria (Marloth) ACWhite & al. (Syn: Euphorbia sagittaria (Marloth) (1930)); In contrast to the stem species, the shoots are usually square and are divided into shorter and rounded sections
swell
- Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 116 .
Individual evidence
- ^ Repertory Specierum Novarum Regni Vegetabilis. Centralblatt for the collection and publication of single diagnoses of new plants. Volume 53, p. 96, Berlin 1928
Web links
- Data and photos on the species at euphorbia.de