Yucca baccata subsp. vespertina

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Yucca baccata subsp. vespertina
Yucca baccata subsp. vespertina fh 1183.5 AZ With fruits in Arizona

Yucca baccata subsp. vespertina fh 1183.5 AZ
With fruits in Arizona

Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Palm lilies ( yucca )
Type : Blue palm lily ( Yucca baccata )
Subspecies : Yucca baccata subsp. vespertina
Scientific name
Yucca baccata subsp. vespertina
( McKelvey ) Hochstätter
Distribution area of ​​the Yucca Baccatae series

Yucca baccata subsp. vespertina (common name : "Mohave Datil Yucca") is a subspecies of the blue palm lily ( Yucca baccata ) in the asparagus family (Asparagaceae).

description

The solitary Yucca baccata subsp. vespertina is stemless or rarely forms a short stem, but forms dense clumps. The variable blue to green leaves are 0.5 to 1.5 meters long and form fibers on the leaf edges.

The short, upright or inclined to the side, branched, dense inflorescence that begins between the leaves is 0.3 to 0.6 meters high and barely protrudes beyond the leaves. The pendulous, elongated flowers are 6 to 12 cm long and 1 to 2 cm wide. The six bracts are white to cream-colored. The outer bracts are partly reddish to purple in color. In contrast to the subspecies baccata , the representative of the Yucca series Baccatae forms large, dense groups. The flowering period extends from April to July.

When dry, it is frost-hardy to minus 20 ° C. In the collection of Fritz Hochstätter in Mannheim , several 20-year-old specimens grow unprotected in the open air.

distribution

Yucca baccata subsp. vespertina is distributed in the Great Basin Desert, the Mojave Desert , in the states of Utah , California , Nevada , Arizona in the Pinyon-Juniper woodland, in Sagbrush colonies at altitudes between 600 and 2000 meters. This species is often associated with a large number of different Yucca brevifolia , Yucca schidigera , Agave utahensis var. Eborispina and with various types of cacti .

Systematics

The valid description is by Fritz Hochstätter under the name Yucca baccata subsp. vespertina was published in 2001.

Synonyms are Yucca baccata var. Vespertina McKelvey 1938 and Yucca vespertina Welsh 1993

photos

  • In May in Utah

  • Blossom view in California

  • In Kultur, 20 year old copy in the collection of F. Hochstätter in Mannheim

Individual evidence

  1. ↑ Succulenta Vol. 80 No. 4, pp. 166-173, 2001.
  2. ^ Yuccas of the Southwest US 1:45, 1938.
  3. ↑ Rhodora 95: 883-884, 417.1993.

literature

  • Yucca baccata subsp. vespertina . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 2 USA, Selbstverlag, 2002, pp. 31–32, photomaterial pp. 115–120, first description p. 245, p. 305, ISBN 3-00-009008-8 .

Web links