Echinocereus poselgeri
| Echinocereus poselgeri | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Echinocereus |
| Species: | E. poselgeri |
| Binomial name | |
| Echinocereus poselgeri | |
| Synonyms[3] | |
| |
Echinocereus poselgeri, also known as the dahlia cactus, is a species of Echinocereus. It is native to Coahuila and southern Texas.[4]
Description[edit]
Echinocereus poselgeri typically grows with several spreading shoots, forming a tuberous, dahlia-like rhizome. The dark blue-green shoots are slender, cylindrical, and taper to a point, measuring 60 to 120 centimeters long and 1 to 2 centimeters in diameter. They have eight to ten low, inconspicuous ribs that are not tuberculated. A single, slightly flattened, dark central spine points toward the shoot tip and is up to 9 millimeters long. The eight to 16 whitish or grayish marginal spines, which have darker tips, are 2 to 4.5 millimeters long.
The funnel-shaped flowers are slightly pinkish-magenta, appearing near the tips of the shoots. They can be up to 6 centimeters long and 7 centimeters in diameter. The dark green to brown fruits are egg-shaped and covered with persistent wool and thorns.[5]
Distribution[edit]
Echinocereus poselgeri is growing in scrub valleys and hills of southern Texas, USA, and the Mexican states of Coahuila, Nuevo León, Tamaulipas, and San Luis Potosí, typically found at low elevations in sandy soil at elevations up to 1150 meters.[6]
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Plant growing in habitat in Nuevo León
Taxonomy[edit]
Charles Lemaire first described the species in 1868. The specific epithet poselgeri honors Heinrich Poselger, a German doctor, chemist, and botanist who collected succulent plants in North America from 1849 to 1851.[7]
References[edit]
- ^ Corral-Díaz, R.; Goettsch, B.K.; Gómez-Hinostrosa, C.; Terry, M.; Heil, K. (2017). "Echinocereus poselgeri". IUCN Red List of Threatened Species. 2017: e.T151193A121440514. doi:10.2305/IUCN.UK.2017-3.RLTS.T151193A121440514.en. Retrieved 20 November 2021.
- ^ USDA, NRCS (n.d.). "Echinocereus poselgeri". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved September 7, 2013.
- ^ "Echinocereus poselgeri". wildflower.org. Retrieved 18 March 2014.
- ^ "Echinocereus poselgeri". cactiguide.com. Retrieved 18 March 2014.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 204. ISBN 3-8001-4573-1.
- ^ Vallicelli, Valentino (2013-08-04). "Echinocereus poselgeri". LLIFLE. Retrieved 2024-06-23.
- ^ Lemaire, C. (1869). Les cactées: histoire, patrie, organes de végétation. Bibliothèque du jardinier (in French). Maison rustique. p. 57. Retrieved 2024-06-23.
External links[edit]
Media related to Echinocereus poselgeri at Wikimedia Commons
Data related to Echinocereus poselgeri at Wikispecies
