Agave chrysantha
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| Peebles |
Agave chrysantha is a plant from the genus of the Agave ( agave ). An English common name is "Golden-Flowered Agave".
description
Agave chrysantha is monocarpic, forms small, compact rosettes and sometimes forms sparse runners. It reaches heights of 50 to 100 centimeters and a diameter of 80 to 180 centimeters. The variable, rutty, linear to lanceolate, yellow-green to gray, leaves are 40 to 75 cm long and 8 to 10 cm wide. The leaf margins are serrated variably. The brown to gray terminal thorn is 5 to 15 cm long.
The paniculate, slender, straight inflorescence is 4 to 8 m high. The golden yellow flowers are 40 to 55 mm long and appear on the upper part of the inflorescence on irregularly arranged branches. After flowering, bulbils rarely form. The flower tube is 8 to 13 mm long.
The variably shaped three-chamber capsule fruits are 35 to 50 mm long and 13 to 15 mm wide. The black seeds are 6 to 7 mm long and 4.5 to 5 mm wide.
The flowering period extends from June to August.
The number of chromosomes is 2n = 60.
Systematics and distribution
Agave chrysantha grows endemically in central Arizona in the United States , on stony mountain slopes, in granite and volcanic soils, in grasslands and woodlands at altitudes of 900 to 1800 m. It is associated with numerous types of cacti and succulents.
The first description by Robert Hibbs Peebles was published in 1935. Synonyms are Agave palmeri var. Chrysantha (Peebles) Little and Agave palmeri subsp. chrysantha (Peebles) B. Ullrich .
Agave chrysantha is a representative of the section Ditepalae . The long, up to 8 meters high inflorescences are characteristic. It is similar to Agave palmeri and Agave parryi, however, differences in leaf and flower structure become clear. Agave chrysantha is grown in the Desert Botanic Garden in Arizona.
It hybridizes with Agave murpheyi , Agave palmeri , Agave parryi var. Couesii and Agave delamateri .
literature
- August J. Spread: Agave chrysantha. In: The Agaves. The Cactus & Succulent Journal Yearbook. 1968, p. 104.
- Howard Scott Gentry: Agaves of Continental North America . University of Arizona Press, 1982, ISBN 0-8165-0775-9 , pp. 426-431.
- Mary & Gary Irish: Agaves, yuccas, and related plants. A Gardener's Guide . Timber Press, 2000, ISBN 0-88192-442-3 , pp. 109-111, pl. 12.
- Thomas Heller: Agaves . Ntv, Münster 2006, ISBN 3-937285-59-8 , pp. 74-75.
- James L. Reveal, Wendy C. Hodgson: Flora of North America Agavaceae . Oxford University Press, 2002, pp. 459-460 .
- J. Thiede: Agave chrysantha. In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 21-22.
Individual evidence
- ↑ Agave chrysantha at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ Robert Hibbs Peebles In: Proc. Biol. Soc. Wash. 1935, volume 48, p. 139.
- ^ Hodgson, 1999.
