Harrisia adscendens

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Harrisia adscendens
Systematics
Order : Clove-like (Caryophyllales)
Family : Cactus family (Cactaceae)
Subfamily : Cactoideae
Tribe : Trichocereeae
Genre : Harrisia
Type : Harrisia adscendens
Scientific name
Harrisia adscendens
( Gürke ) Britton & Rose

Harrisia adscendens is a species of plant in the genus Harrisia fromthe cactus family (Cactaceae). The specific epithet adscendens comes from Latin , means 'ascending' and refers to the growth habit of the species.

description

Harrisia adscendens grows shrubby with rich, sparsely branched, initially upright, later overhanging or splayed-climbing shoots and forms a conspicuous trunk. The shoots have a diameter of 2 to 5 centimeters and are 5 to 8 meters long. There are seven to ten low, rounded ribs that form elongated bumps. The four to ten strong, yellowish to grayish thorns , thickened at their base, have a darker tip and are 1 to 3 centimeters long.

The flowers reach a length of 15 to 18 centimeters. Your pericarpel and the flower tube are covered with scales and long hair . The spherical, tear-open, red fruits are somewhat humped. They have a diameter of 5 to 6 centimeters.

Distribution, systematics and endangerment

Harrisia adscendens is widespread in northeastern Brazil from the state of Bahia to the south of Ceará and Paraíba at altitudes of 50 to 700 meters.

It was first described as Cereus adscendens in 1908 by Robert Louis August Maximilian Gürke . Nathaniel Lord Britton and Joseph Nelson Rose put the species in the genus Harrisia in 1920 . A nomenclature synonym is Eriocereus adscendens (Gürke) A. Berger (1929).

In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.

proof

literature

Individual evidence

  1. Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 3.
  2. M. Gürke: New types of cacti from Brazil . In: Monthly for cactus science . Volume 18, Number 5, 1908, pp. 66-69 (online) .
  3. ^ NL Britton , JN Rose : The Cactaceae . Descriptions and Illustrations of Plants of the Cactus Family . tape II . The Carnegie Institution of Washington, Washington 1920, p. 155-156 ( online ).
  4. Harrisia adscendens in the IUCN Red List of Threatened Species 2013.2. Posted by: Machado, M., Taylor, NP & Braun, P., 2010. Retrieved March 16, 2014.

Web links

Commons : Harrisia adscendens  - collection of images, videos and audio files