Pilosocereus gaumeri
| Pilosocereus gaumeri | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Pilosocereus |
| Species: | P. gaumeri
|
| Binomial name | |
| Pilosocereus gaumeri (Britton & Rose) Backeb.
| |
Pilosocereus gaumeri is a species of columnar cactus endemic to the Yucatán Peninsula of Mexico.[1] Its common name in Spanish is sabucán.[2]
Description
[edit]Pilosocereus gaumeri is a slender-growing branching cactus up to about 2.4 m (8 ft) tall. It has green to yellowish green stems with 8–13 ribs. The areoles are about 5 mm (0.2 in) across and have up to 15 rigid spines. The spines are up to 5 cm (2.0 in) long and yellow to brown when fresh. Flowering areoles have dense tufts of silky hairs up to 5 cm (2.0 in) long. Non-flowering areoles have few or no silky hairs. The flowers are 5–7 cm (2.0–2.8 in) long, occasionally up to 8 cm (3.1 in) long. The outer segments (tepals) are reddish green. The inner segments are white to yellowish green. The flowers last for one night. The fruits have purple pulp when ripe.[3][2]
Taxonomy
[edit]The species was first described by Nathaniel Lord Britton and Joseph Nelson Rose in 1920 as Cephalocereus gaumeri. In 1960, Curt Backeberg transferred it to the genus Pilosocereus.[1] The epiphet gaumeri refers to the American botanist George Franklin Gaumer (1850-1929).[3][4] Pilosocereus gaumeri has been treated under the incorrect name Pilosocereus royenii.[3][2] It has also been considered to be a subspecies of Pilosocereus polygonus, P. polygonus subsp. gaumeri.[1][5]
Distribution
[edit]Pilosocereus gaumeri is endemic to the Yucatán Peninsula of Mexico, in particular the states of Campeche and Yucatán. It is the only Pilosocereus species found in this region.[3]
Ecology
[edit]Pilosocereus gaumeri is often found growing with Opuntia inaperta. The cactus stems also serve as a nesting site for wrens.[2]
References
[edit]- ^ a b c "Pilosocereus gaumeri (Britton & Rose) Backeb. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2025-05-28.
- ^ a b c d "Sabucán, PILOSOCEREUS GAUMERI". www.backyardnature.net. Retrieved 2025-05-28.
- ^ a b c d Franck, Alan R.; Barrios, Duniel; Campbell, Keron C. St. E.; Lange, James; Peguero, Brígido; Santiago-Valentín, Eugenio; Rigerszki, Zoltán; Haakonsson, Jane; Gann, George D.; Cinea, William; Howe, Natalie M. M.; St. John, James; Moreno, Juan Sebastián & Clark, Cynthia A. (2019). "Revision of Pilosocereus (Cactaceae) in the Caribbean and northern Andean region". Phytotaxa. 411 (3): 129–182. Bibcode:2019Phytx.411..129F. doi:10.11646/phytotaxa.411.3.1.
- ^ "Pterocereus gaumeri". 2022-01-26. Retrieved 2025-05-28.
- ^ Guiggi, A. (2020). "Caribbean Region: Nomenclatural Revision in Cactaceae" (PDF). Cactology. 5 (Suppl. 8): 5–6. Retrieved 2025-06-20.