Euphorbia venenifica
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Euphorbia venenifica |
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| Trémaux ex Kotschy |
Euphorbia venenifica is a species of the genus spurge ( Euphorbia ) in the family of Euphorbiaceae (Euphorbiaceae). The specific epithet venenifica comes from Latin and means 'poisonous'.
description
The succulent Euphorbia venenifica forms little branched shrubs 2 to 5 meters high. The stalk-round shoots are up to 3.5 centimeters in diameter and are pale gray in color. The roughly circular thorn shields are 6 to 8 millimeters in diameter and are about 1 centimeter apart in about 8 spiral rows. The tapered thorns grow to about 12 millimeters long and wither quickly. Very small stipule spines are formed. The dense, fleshy leaves at the tip of the shoots are lanceolate to obovate and sessile. They become 4 to 22 inches long and 1 to 4 inches wide. The whole-edged leaves form a pointed to truncated tip. The leaves remain on younger shoots for a long time.
The inflorescence consists of individual cymes which are bifurcated once or twice. The inflorescence stalks are about 7 millimeters long. The cyathia are about 5 millimeters in diameter. The elongated nectar glands touch and are yellowish in color. The clearly lobed fruit is about 4 millimeters wide and 5 millimeters long. The almost spherical seed is smooth and reaches 2.5 millimeters in diameter.
Distribution and systematics
Euphorbia venenifica is distributed in the south of Sudan , in northern Uganda , in the southwest of Ethiopia and in Zaire on stony slopes in dry grasslands covered with forest at altitudes of about 1200 meters.
The first description of the species was in 1857 by Theodor Kotschy .
swell
- Urs Eggli (ed.): Succulent lexicon. Dicotyledons (dicotyledons) . Eugen Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , pp. 211 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 250.
- ↑ Communications from the Imperial and Royal Geographical Society in Vienna, Volume 1, p. 173, Vienna 1857 ( online )
