Cotyledon orbiculata
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Cotyledon orbiculata |
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Cotyledon orbiculata is a species of the genus Cotyledon in the thick-leaf family(Crassulaceae). The specific epithet orbiculata comes from Latin , means 'spherical' and refers to the leaf shape that occurs in some forms. The common name in Afrikaans is "Plakkie" and means sticky .
description
Cotyledon orbiculata grows upright to prostrate and reaches a height of up to 100 centimeters. The leaves, which are extremely variable in color, shape and hair, are usually glabrous and obovate, but also oblong, petiolate, circular, lanceolate and hairy. They are up to 10.5 inches long and up to 5 inches wide. The leaf margin is often reddish and wavy. The leaf base is wedge-shaped and the tip is provided with attached tips.
The inflorescence becomes 45 centimeters high. The tubular corolla has no bulges and is 20 millimeters long and up to 9 millimeters in diameter. The bent back corolla lobes are orange, red or yellow and are 12 millimeters long. The stamens protrude 2 to 3 millimeters. The yellow anthers are elongated and 1.75 millimeters in diameter. The slightly oblong nectar flakes are dull and yellowish green and are 1.5 × 2 millimeters in size.
Distribution and systematics
Cotyledon orbiculata is found in southern Angola , Namibia and South Africa in the fynbos , in the succulent karoo , on grassland and in the bushveld, mostly on rocks.
The first description by Carl von Linné was published in Species Plantarum in 1753 .
There are numerous synonyms .
A distinction is made between the following varieties :
- Cotyledon orbiculata var. Dactylopsis Toelken : Occurrence in South Africa in the provinces of the North Cape and Free State , on dolerite rocks in the grasslands; differs from the parent species in that it has short, bell-shaped, yellow flowers with fine red lines, the plants grow prostrate to upright and reach a height of around 15 centimeters. The gray shoots reach 15 millimeters in diameter. The crowded leaves are gray-green. The leaf blade is linear-lanceolate and petiolate to slightly flattened. It becomes 13 inches long and 1.3 inches wide. It is pointed at the tip and has a red tip. The inflorescence is up to 28 centimeters high and the flower stalks are up to 15 millimeters long. The corolla has a diameter of 7 millimeters at the base and becomes 10 millimeters long. The bent back corolla lobes are about 10 millimeters long. The slightly tapered nectar flakes are 1.5 millimeters long and wide.
- Cotyledon orbiculata var. Flanaganii (Schönland & Baker) Toelken
- Cotyledon orbiculata var. Oblonga (Haw.) DC.
- Cotyledon orbiculata var. Orbiculata
- Cotyledon orbiculata var. Spuria (L.) Toelken
use
The plants are used to treat warts.
proof
literature
- Urs Eggli (ed.): Succulent lexicon. Crassulaceae (thick leaf family) . Eugen Ulmer, Stuttgart 2003, ISBN 3-8001-3998-7 , pp. 26-28 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 175.
- ↑ Carl von Linné: Species Plantarum . Volume 1, 1753, p. 429 ( online ).
