Yucca constricta
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Yucca constricta with trunk in Texas |
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| Buckley |
Yucca constricta (English common name : Buckley Yucca) is a species of palm lily ( Yucca ) in the asparagus family (Asparagaceae).
description
Yucca constricta grows solitary, without trunk or with trunks 0.5 to 1 meter in height, or in groups. The flexible, grass-like, pliable, finely fibrous, green to blue-green leaves are 20 to 50 cm long and 1.5 cm wide.
The branched inflorescence that begins in the leaves protrudes far beyond the leaves, is up to 3 meters high and is an impressive sight during the flowering period. The tubular flowers are 2.5 to 4 cm long and 1.5 to 2 cm in diameter. The six identical bloom bracts are white to cream-colored. The flowering time is in May.
Occurrence
Yucca constricta is endemic in Texas in the Chihuahua Desert from the southeastern Edwards Plateau south towards the Gulf of Mexico in plains and on flat rocky hills at altitudes between 280 and 1230 meters. This species often grows in association with various types of cacti .
Yucca constricta is frost hardy to minus 18 ° C in Central Europe with protection in the winter months . It is rare in collections.
Systematics
This species is closely related to Yucca campestris and both show some morphological similarities with the east coast representatives of the series Filamentosae Yucca filamentosa and Yucca flaccida . He is a representative of the Chaenocarpa Series Glaucae section .
The first description by Samuel Botsford Buckley was published in 1863.
photos
Yucca constricta :
With the approach of an inflorescence in Texas
Distribution area
literature
- Yucca constricta . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 USA, self-published. 2000, pp. 56–57, photo material p. 106, p. 238, first description pp. 187–188. ISBN 3-00-005946-6 .
Individual evidence
- ^ Proc. Acad. Nat. Sci. Philadelphia 1862: 8, 1863.
Web links
- Description in the Flora of North America (English).