Agave bracteosa

Agave bracteosa
Scientific classification
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Agavoideae
Genus: Agave
Species: A. bracteosa
Binomial name
Agave bracteosa
S. Wats. ex Engelm. 1882

Agave bracteosa is a species of agave sometimes known as "spider agave" or "squid agave." It is native to the Sierra Madre Oriental of Mexico, in the states of Tamaulipas, Coahuila and Nuevo León. It is found on cliffs and rocky slopes from 900 to 1,700 meters.[1]

Small among the agaves, its green succulent leaves are long and lanceolate, 50-70 cm long and 3-5 cm at the base, where they are the widest. They have minute serrations (teeth) along the margins, but no teeth nor spine at the end. The leaves have a tendency to curl somewhat, in a fashion reminiscent of the octopus agave A. vilmoriniana. The inflorescence spike is also short at 1.2-1.7 meters, and its upper third is densely covered with white or pale yellow flowers. The flowers are distinctive in that tepals arise from a disk-shaped receptacle rather than the usual tube. The stamens are quite long.[2]

Gentry defines a group "Choritepalae" that includes A. bracteosa along with Agave ellemeetiana and Agave guiengola, and states that the discoid receptacle and unarmed leaves are different enough from other agaves to justify placing A. bracteosa and A. ellemeetiana into a separate genus, but that characteristics of A. guiengola link the group to the rest of Agave.


References

  1. Engelmann, Georg, Garden Chronicles 2:18, 776, fig 138, 139. 1882.
  2. Howard Scott Gentry, Agaves of Continental North America (University of Arizona Press, 1982) pp. 91-93
Wikimedia Commons has media related to Agave bracteosa.
This article is issued from Wikipedia - version of the Monday, April 04, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.