Echinocereus pentalophus
Echinocereus pentalophus | |
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Echinocereus pentalophus specimen in Kew Gardens, London. | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Cactaceae |
Subfamily: | Cactoideae |
Genus: | Echinocereus |
Species: | E. pentalophus
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Binomial name | |
Echinocereus pentalophus (DC.) Lem.[2]
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Synonyms | |
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Echinocereus pentalophus, with the common name ladyfinger cactus, is a species of
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]
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Echinocereus pentalophus in native habitat, San Luis Potosí, Northeastern Mexico.
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Close up of flowers.
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Echinocereus pentalophus in native habitat, Cerritos, San Luis Potosi
Subspecies
Accepted subspecies:[4]
Distribution
The
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]
References
- . Retrieved 10 December 2022.
- ^ a b USDA, NRCS (n.d.). "Echinocereus pentalophus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved September 7, 2013.
- ISBN 3-8001-4573-1.
- ^ "Echinocereus pentalophus (DC.) Engelm. ex Haage". Plants of the World Online. Retrieved 2023-11-02.
- ^ D&Amp, Um National; (France), histoire naturelle (1828). "Mémoires du Muséum d'histoire naturelle". G. Dufour. Retrieved 2023-11-02.
- ISBN 978-3-642-05597-3.
- ^ Lemaire, C. (1869). Les cactées: histoire, patrie, organes de végétation. Bibliothèque du jardinier (in French). Maison rustique. p. 56. Retrieved 2023-11-02.
External links
- Media related to Echinocereus pentalophus at Wikimedia Commons
- Data related to Echinocereus pentalophus at Wikispecies