Acharagma roseanum | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Cactaceae |
Subfamily: | Cactoideae |
Genus: | Acharagma |
Species: | A. roseanum
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Binomial name | |
Acharagma roseanum (Boed.) E.F.Anderson
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Synonyms | |
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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]
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]
Acharagma roseanum is widespread in the Mexican states of Coahuila, Nuevo León and San Luis Potosí.
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).