Yucca elata subsp. utahensis

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Yucca elata subsp. utahensis
Yucca elata subsp. utahensis in flower in May in Nevada

Yucca elata subsp. utahensis in flower in May in Nevada

Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Palm lilies ( yucca )
Type : Yucca elata
Subspecies : Yucca elata subsp. utahensis
Scientific name
Yucca elata subsp. utahensis
( McKelvey ) Hochstätter
In southern Utah

Yucca elata subsp. utahensis (English common name : "Utah Yucca") is a subspecies of the plant species Yucca elata in the asparagus family (Asparagaceae).

description

Yucca elata subsp. utahensis grows without a trunk or forms a trunk up to 0.6 m in height. The variable and flexible fibrous leaves are 20 to 90 cm long and yellow-green.

The branched panicle inflorescence reaches a height of 1 to 2 meters. The hermaphrodite, threefold, pendulous, bell-shaped flowers have a length and a diameter of 3.5 to 5.5 centimeters. The six identical bloom bracts are white to cream-colored. The flowering period extends from April to June.

Occurrence

Yucca elata subsp. utahensis is distributed in the US states of Utah and Nevada in the Great Basin Desert in plains and on flat hills in sandy soil at altitudes between 850 and 2000 meters. It often grows in association with Sclerocactus spinosior subsp. blainei , Pediocactus sileri , Mammillaria tetrancistra , Agave utahensis var. eborispina and various species of cacti .

Intermediate forms, the Yucca angustissima subsp. related to kanabensis .

This subtype is down to -20 ° C hardy . However, it is rarely in collections.

Systematics

The description by Fritz Hochstätter under the name Yucca elata subsp. utahensis was published in 1998.

Synonyms

  • Yucca utahensis McKelvey 1947
  • Yucca elata var.utahensis Reveal 1977

literature

  • Yucca elata subsp. utahensis . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 USA, self-published. 2000, pp. 49-50, description pp. 215-216, p. 237. ISBN 3-00-005946-6 .

Individual evidence

  1. ↑ Cactaceae Review IRT 1 (2): 21. 1998.
  2. ^ Yuccas of the Southwest US 2: 94-98. 1947
  3. ↑ Intermountain Flora, Vascular Plants of the Intermountain West: 533, 1977.

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