Echinocereus rayonesensis
| Echinocereus rayonesensis | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Echinocereus |
| Species: | E. rayonesensis
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| Binomial name | |
| Echinocereus rayonesensis N.P.Taylor, 1988
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| Synonyms | |
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Echinocereus rayonesensis is a species of cactus native to Mexico.[2]
Description
[edit]Echinocereus rayonesensis grows with many shoots and branches at ground level. The upright, cylindrical shoots are 12 to 28 cm (4.7 to 11.0 in) long and have a diameter of 2.5 to 4.5 cm (0.98 to 1.77 in). They are hidden by the dense thorns. There are ten to 15 ribs that are tuberculated. The hair-like or slender thorns on them are glassy white to yellowish. The five to nine downward-facing central spines are 3 to 5 cm (1.2 to 2.0 in) long. The 15 to 25 radial spines, occasionally more, are 0.7 to 1.5 cm (0.28 to 0.59 in) long.
The broadly funnel-shaped flowers are somewhat purple-magenta in color and have a white throat. They appear on the sides of the shoots, are 2.5 to 6 cm (0.98 to 2.36 in) long and reach 2.8 to 6 cm (1.1 to 2.4 in) in diameter. The elongated fruits are olive green to brown.[3]
Distribution
[edit]Echinocereus rayonesensis is widespread in the Mexican state of Nuevo León in the Rayones Valley.
Taxonomy
[edit]The first description by Nigel Paul Taylor was published in 1988.[4] The specific epithet "rayonesensis" refers to the occurrence of the species in the Mexican Valley of Rayones.
References
[edit]- ^ Fitz Maurice, B.; Fitz Maurice, W.A.; Hernández, H.M.; Sotomayor, M. (2017) [amended version of 2013 assessment]. "Echinocereus rayonesensis". IUCN Red List of Threatened Species. 2017: e.T152826A121490566. doi:10.2305/IUCN.UK.2017-3.RLTS.T152826A121490566.en.
- ^ "Echinocereus rayonesensis N.P.Taylor". Plants of the World Online. Retrieved 2024-06-24.
- ^ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 205. ISBN 3-8001-4573-1.
- ^ Taylor, N.P. (1988). "Supplementary notes on Mexican Echinocereus (1)". Bradleya. 6 (6): 65–84. doi:10.25223/brad.n6.1988.a3. ISSN 0265-086X.
External links
[edit]
Media related to Echinocereus rayonesensis at Wikimedia Commons
Data related to Echinocereus rayonesensis at Wikispecies
