Yucca harrimaniae subsp. gilbertiana
| Yucca harrimaniae subsp. gilbertiana | ||||||||||||
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Yucca harrimaniae subsp. Gilbertiana in flower in May in Utah |
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| Yucca harrimaniae subsp. gilbertiana | ||||||||||||
| ( Trel. ) Hochstätter |
Yucca harrimaniae subsp. gilbertiana (English common name "Salt Lake Desert Yucca") is a subspecies of the plant species Yucca harrimaniae in the asparagus family (Asparagaceae).
description
Yucca harrimaniae subsp. gilbertiana grows solitary and spreads via runners . The root system is like the subspecies Yucca harrimaniae subsp. sterile rhizome-like . The blue-green leaves are 20 to 40 cm long and 2 to 4 cm wide in the middle. In contrast to the subspecies Yucca harrimaniae subsp. sterile , the leaves are stiffer. The leaf margins form fibers.
The inflorescence that begins in the leaves becomes 0.4 to 1 meter high. The pendulous, bell-shaped, spherical, hermaphrodite flowers are 4 to 6 cm long and 2 to 3 cm in diameter. Of the six white to cream-colored bracts of the same shape , the outer ones are sometimes covered in purple. The flowering period extends from May to June.
distribution
Yucca harrimaniae subsp. gilbertiana is in the US states of Utah and Nevada in from Sagebrush spread dominated levels at shallow rocky hills at elevations from 1,700 to 2,000 meters. This subspecies grows together with Sclerocactus pubispinus , Sclerocactus spinosior , Pediocactus simpsonii and various other cacti species.
Yucca harrimaniae subsp. gilbertiana is frost hardy to –20 ° C in Central Europe . It is rare in collections. In Germany, Mannheim, in the collection of F. Hochstätter, twelve-year-old specimens grow outdoors with protection in the winter months.
Systematics
The botanical name was chosen after GK Gilbert. The valid description by Fritz Hochstätter under the name Yucca harrimaniae subsp. gilbertiana was published in 2000.
Yucca harrimaniae var. Gilbertiana Trel is a synonym . (1907).
photos
Yucca harrimaniae subsp. gilbertiana :
Small colony in Utah
Young plant in May in Nevada
Individual evidence
literature
- Yucca harrimaniae subsp. gilbertiana . In: Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 USA, self-published. 2000, p. 36, photo material 31, p. 90, Yucca I Front cover, Back cover, p. 232-233, description p. 210, p. 233, ISBN 3-00-005946-6 .