Agave phillipsiana
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| Agave phillipsiana | ||||||||||||
| WCHodgs. |
Agave phillipsiana is a plant from the genus of the Agave ( agave ). An English common name is "Grand Canyon Agave".
description
Agave phillipsiana forms large, open rosettes with a height of 75 to 100 cm and a diameter of 75 to 100 cm. It forms abundant rhizomatous offshoots. The lanceolate, variably arranged, green to bluish leaves are 76 to 78 cm long and 10 to 11 cm wide. The brown to gray leaf margins are serrated irregularly. The brown to gray terminal spine is 2.5 to 4 cm long.
The panicle inflorescence is 4 to 5.5 m high. The green to cream-colored flowers are 32 to 45 mm long and appear on the upper part of the inflorescence on irregularly arranged, loose branches. The flower tube is 15 to 20 mm long.
The flowering period extends from August to September.
Systematics and distribution
Agave phillipsiana grows endemically in Arizona in the inner Grand Canyon on stony open slopes, in open woodland at 700 to 1150 m. It is in Tapeals Creek at an altitude of 1090 m with Sclerocactus parviflorus subsp. havasupaiensis , Opuntia engelmannii and Yucca baccata .
The first description by Wendy C. Hodgson was published in 2001.
Agave phillipsiana is a representative of the Ditepalae section . It is extremely rare and only a few small colonies grow in a geographically isolated area in the inner Grand Canyon of Arizona . The species makes large open rosettes with numerous rhizomatous offshoots. It is related to Agave delamateri and Agave palmeri , but there are differences in size, shape, leaf and flower structure. The Agave utahensis subsp. Found in the east of the inner Grand Canyon . kaibabensis inhabits colder regions and is smaller overall.
Agave phillipsiana is grown in the Desert Botanic Garden in Tucson, Arizona.
literature
- WC Hodgson: A new flora for Arizona in preparation. Agavaceae. Agave. Part I. Agave L. Century Plant. Maguey. In: J. Arizona-Nevada. Acad. Sci. Volume 32, No. 1, 1999, pp. 1-21.
- James L. Reveal, Wendy C. Hodgson: Flora of North America Agavaceae . Oxford University Press, 2002, pp. 461 .