Echinocereus longisetus

Echinocereus longisetus is a species of Echinocereus found in Mexico.[2]

Echinocereus longisetus
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Echinocereus
Species:
E. longisetus
Binomial name
Echinocereus longisetus
(Engelm.) Lem.
Synonyms

Description

Echinocereus longisetus branches from the base, forming large clusters up to 1 meter in diameter. The upright cylindrical stems are 30 to 50 centimeters long and 5 to 8 centimeters in diameter, with 11 to 24 low, tuberculated ribs. The plant has four to nine central spines that are straight or curly, whitish to brownish, and 1 to 10 centimeters long. It also has 15 to 20 white marginal spines, each 1 to 2 centimeters long.

The funnel-shaped flowers are slightly pinkish-purple and appear near the base of the stems, not at the tips. They are 5 to 7 centimeters long and 6 to 7 centimeters in diameter.[3][4]

Subspecies

There are two recognized subspecies:[2]

ImageScientific nameDistribution
Echinocereus longisetus subsp. delaetii (Gürke) N.P.TaylorMexico (S. Coahuila)
Echinocereus longisetus subsp. longisetusMexico (CN. Coahuila)


Distribution

Echinocereus longisetus is found in the Mexican states of Coahuila and Nuevo León.

  • Plant growing in Viesca, Coahuila
  • Habitat in Viesca, Coahuila

Taxonomy

Originally described as Cereus longisetus by George Engelmann in 1856, the specific epithet "longisetus" comes from the Latin words "longus" (long) and "-setus" (bristly), referring to its long, bristle-like spines.[5] Charles Lemaire reclassified it into the genus Echinocereus in 1868.[6]

References
  1. Fitz Maurice, B; Sotomayor, M.; Fitz Maurice, W.A.; Hernández, H.M.; Smith, M. (2017) [amended version of 2013 assessment]. "Echinocereus longisetus". IUCN Red List of Threatened Species. 2017: e.T152376A121471456. doi:10.2305/IUCN.UK.2017-3.RLTS.T152376A121471456.en.
  2. "Echinocereus longisetus (Engelm.) Lem". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-05-04.
  3. Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 199. ISBN 3-8001-4573-1.
  4. "Echinocereus longisetus". LLIFLE. 2013-08-04. Retrieved 2024-06-24.
  5. Arts, American Academy of (1852). "Proceedings of the American Academy of Arts and Sciences". Metcalf and Co. ISSN 0199-9818. Retrieved 2024-06-24.
  6. Lemaire, C. (1869). Les cactées: histoire, patrie, organes de végétation. Bibliothèque du jardinier (in French). Maison rustique. p. 57. Retrieved 2024-06-24.
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