Acharagma roseanum
| Acharagma roseanum | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Acharagma |
| Species: | A. roseanum
|
| Binomial name | |
| Acharagma roseanum (Boed.) E.F.Anderson
| |
| Synonyms | |
| |
Acharagma roseanum is a succulent cactus native to a small area of mountains of southeastern Coahuila and Nuevo León, Mexico. It grows on rocky limestone hills and xerophytic shrubland.[1] Its name is often misspelled as "Roseana".[2]
Description[edit]
Acharagma roseanum forms individual, small, soft bodied cacti that form clusters over time.[2] The plant's specific physical characteristics are: The stem is 4–6 cm (1.6–2.4 in) tall, 1.5–5 cm (0.59–1.97 in) wide with spines that are white-yellow to gold color. The warts stand in rows and are up to 0.3 centimeters long. The 4 to 6 yellow central spines are very similar to the marginal spines or are slightly curved and are 1 to 2 centimeters long. The 15 to 30 marginal spines are yellowish to brownish and 0.8 to 1.5 centimeters long. The flowers are pink to bronze with a dark reddish central stripe or cream flowers on the top of the stem, 1.5–2 cm (0.59–0.79 in) in diameter.[3]
Subspecies[edit]
| Image | Name | Description | Distribution |
|---|---|---|---|
 |
Acharagma roseanum subsp. galeanense (Haugg) D.R.Hunt | It was first described in 1995 as Escobaria roseana subsp. galeanensis by Erich Haugg. David Richard Hunt introduced the species as a subspecies of Acharagma roseanum in 2002. The subspecies has a cylindrical body up to 6 centimeters high, the central thorns are indistinguishable from the marginal thorns, the number of thorns is 30 in total, cream-colored flowers up to 1.5 centimeters long. | Mexico (Coahuila) |
|
Acharagma roseanum subsp. roseanum | The nominate form has an ovoid body up to 4 centimeters high, 4 to 6 central thorns, about 15 marginal thorns, pink flowers up to 2 centimeters long. | Mexico (Nuevo León) |
Distribution[edit]
Acharagma roseanum is widespread in the Mexican states of Coahuila, Nuevo León and San Luis Potosí.
Taxonomy[edit]
The first description was made in 1928 as Echinocactus roseanus by Friedrich Bödeker.[4] The specific epithet roseanum honors the American botanist Joseph Nelson Rose. Edward Frederick Anderson placed the species in the genus Acharagma in 1999.
Synonyms are the following described species: Echinocactus roseanus Boed. (1928), Neoloydia roseanus (Boed.) F.M.Knuth (1936), Thelocactus roseanus (Boed.) W.T.Marshall (1941), Escobaria roseana (Boed.) Buxb. (1951), Coryphantha roseana (Boed.) Moran (1953) and Gymnocactus roseanus (Boed.) Glas & R.A.Foster (1970).
References[edit]
- ^ a b The IUCN Red List of Threatened Species (2013). "Acharagma roseana". IUCN Red List of Threatened Species. 2013: e.T152561A120742505. doi:10.2305/IUCN.UK.2017-3.RLTS.T152561A120742505.en. Retrieved 12 February 2022.
- ^ a b "Acharagma roseanum (Boed.) E.F.Anderson". Retrieved 13 February 2022.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 70–71. ISBN 3-8001-4573-1.
- ^ "Au Cactus Francophone :". Au Cactus Francophone (in French). Retrieved 2023-10-29.
External links[edit]
Media related to Acharagma roseanum at Wikimedia Commons
Data related to Acharagma roseanum at Wikispecies
