Cleistocactus ritteri
| Cleistocactus ritteri | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Cleistocactus |
| Species: | C. ritteri
|
| Binomial name | |
| Cleistocactus ritteri Backeb. ex Guiggi 2020
| |
| Synonyms | |
| |
Cleistocactus ritteri is a species of Cleistocactus found in Bolivia.[2]
Description
Cleistocactus ritteri grows as a shrub with more or less upright, bright green shoots that are branched at the base and reaches heights of 1 to 2 meter with a diameter of 2 to 3 centimeters. There are 12 to 14 ribs. The brown areoles on it later turn white and 5 mm apart. The 5 yellowish central spines are up to 10 millimeters long. The up to 30 fine radial spines are white and 6–8mm long.
The tubular, greenish-yellow to lemon-yellow flowers are slightly downward-pointing and barely curved that blooms from the areoles near the apex of the stems. They are up to 3–4 centimeters long and 5 mm wide. The spherical, green to yellow fruits reach a diameter of up to 1.5 centimeters. Seeds are black pyriform and 0.8 mm long.[3]
Distribution
Cleistocactus ritteri is found beneath trees and shrubs in loamy soil of the Bolivian department of La Paz in the Yungas at altitudes of 2700 to 3000 meters.[4]
Taxonomy
The first description was made in 1959 by Curt Backeberg who named the plant after Friedrich Ritter. A nomenclature synonym is Cephalocleistocactus ritteri (Backeb.) Backeb. (1962).
In the IUCN Red List of Threatened Species, the species is listed as "Least Concern (LC)". H. listed as not endangered.[1]
References
- ^ a b "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-21. Retrieved 2023-08-07.
- ^ "Cleistocactus ritteri Backeb. ex Guiggi". Plants of the World Online. Retrieved 2023-08-07.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 124. ISBN 3-8001-4573-1.
- ^ Lowry, Martin (2016). "A synopsis of the genusCleistocactusLemaire (Cactaceae)". Bradleya. 34 (34). British Cactus and Succulent Society: 148–186. doi:10.25223/brad.n34.2016.a6. ISSN 0265-086X.
External links
- Media related to Cleistocactus ritteri at Wikimedia Commons
- Data related to Cleistocactus ritteri at Wikispecies