Echinocereus pentalophus

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Echinocereus pentalophus
Caryophyllales - Echinocereus pentalophus - 1.jpg
Echinocereus pentalophus specimen in Kew Gardens, London.
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Echinocereus
Species:
E. pentalophus
Binomial name
Echinocereus pentalophus
(DC.) Lem. [2]
Synonyms
  • Cereus pentalophusDC. 1828

Echinocereus pentalophus, with the common name ladyfinger cactus, is a species of Echinocereus cactus, in the tribe Echinocereeae Tribe. It is native to North America.

Contents

Description

Echinocereus pentalophus forms richly branched, low and splayed groups up to 1 meter in diameter. The yellowish green to gray-green, firm-fleshed, cylindrical shoots are 20 to 70 centimeters long and have a diameter of 1 to 6 centimeters. There are three to eight mostly sharp-edged, straight ribs, which are later tuberous. The single protruding central spine, which can also be missing, is yellowish to dark brown and is up to 3 centimeters long. The three to eight straight, whitish to yellowish marginal spines are up to 2 centimeters long. The upper ones are very short.

The broadly funnel-shaped flowers are bright pink to slightly pink-magenta or rarely white and have a white or yellow throat. They never appear near the tips of the shoots, are 8 to 10 centimeters long and reach a diameter of 10 to 15 centimeters. The egg-shaped green fruits have brown thorns and loose wool. They tear irregularly. [3]

Subspecies

Accepted subspecies: [4]

ImageNameDistribution
Echinocereus pentalophus leonensis 01.jpg Echinocereus pentalophus subsp. leonensis(Mathsson) N.P.TaylorMexico (SE. Coahila to W. & S. Nuevo León)
Echinocereus pentalophus Jer 120512 1 (7302662430).jpg Echinocereus pentalophus subsp. pentalophusE. Mexico (to Jalisco)
Echinocereus pentalophus procumbens (14312607404).jpg Echinocereus pentalophus subsp. procumbens(Engelm.) W.Blum & Mich.LangeS. Texas to Mexico (Tamaulipas).

Distribution

The cactus species is found from San Luis Potosí state, through Northeastern Mexico, and into the southern Rio Grande Valley in southeastern Texas and in the Mexican states of Coahuila, Tamaulipas, Nuevo León, Guanajuato, San Luis Potosí, Hidalgo and Querétaro.. [2]

Taxonomy

The first description as Cereus pentalophus by Augustin-Pyrame de Candolle was published in 1828. [5] The specific epithet pentalophus is derived from the Greek words penta for five and lophos for comb and refers to the mostly five-ribbed shoots of the species. [6] Charles Lemaire placed the species in the genus Echinocereus in 1868 [7]

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References

  1. ↑ Goettsch, B.K.; Gómez-Hinostrosa, C.; Heil, K.; Terry, M.; Corral-Díaz, R. (2017) [amended version of 2013 assessment]. "Echinocereus pentalophus". IUCN Red List of Threatened Species . 2017: e.T152059A121457023. doi: 10.2305/IUCN.UK.2017-3.RLTS.T152059A121457023.en . Retrieved 10 December 2022.
  2. 1 2 USDA, NRCS (n.d.). "Echinocereus pentalophus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved September 7, 2013.
  3. ↑ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. pp. 202–203. ISBN   3-8001-4573-1.
  4. ↑ "Echinocereus pentalophus (DC.) Engelm. ex Haage". Plants of the World Online. Retrieved 2023-11-02.
  5. ↑ D&Amp, Um National; (France), histoire naturelle (1828). "Mémoires du Muséum d'histoire naturelle". G. Dufour. Retrieved 2023-11-02.
  6. ↑ Eggli, Urs; Newton, Leonard E. (2010-11-30). Etymological Dictionary of Succulent Plant Names. Springer. pp. 181–182. ISBN   978-3-642-05597-3.
  7. ↑ Lemaire, C. (1869). Les cactées: histoire, patrie, organes de végétation. Bibliothèque du jardinier (in French). Maison rustique. p. 56. Retrieved 2023-11-02.


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