Yucca angustissima subsp. kanabensis

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Yucca angustissima subsp. kanabensis
Yucca angustissima subsp. kanabensis, typical in Utah

Yucca angustissima subsp. kanabensis , typical in Utah

Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Palm lilies ( yucca )
Type : Yucca angustissima
Subspecies : Yucca angustissima subsp. kanabensis
Scientific name
Yucca angustissima subsp. kanabensis
( McKelvey ) Hochstätter

Yucca angustissima subsp. kanabensis (English common name "Kanab Yucca") is a subspecies of the plant species Yucca angustissima in the asparagus family (Asparagaceae).

description

Yucca angustissima subsp. kanabensis grows solitary or in small groups, sometimes with a short stem. The variable, green leaves are 45 to 75 cm long and 0.6 to 2 cm wide.

The inflorescence that begins above the leaves is 1.5 to 3 meters high. The thin, long, flexible leaves are typical, in contrast to the subspecies Yucca angustissima subsp. angustissima and Yucca angustissima subsp. toftiae with shorter leaves. The hanging, bell-shaped, spherical, white to cream-colored flowers are 5.5 to 6.5 cm long and 2 to 4 cm in diameter. In the east of the distribution area there are transitional forms that belong to the subspecies Yucca angustissima subsp. to be close to angustissima . The flowering period is from May to July.

Yucca angustissima subsp. kanabensis is in Central Europe to minus 20 ° C frost-hardy . It is rarely found in collections.

distribution

Yucca angustissima subsp. kanabensis is distributed in the US states of Utah and Arizona in the Great Basin Desert on sandy hills in open woodland at altitudes between 1,300 and 2,300 meters. It grows together with Sclerocactus parviflorus and various types of cacti .

Systematics

The botanical name was chosen after the main distribution area near the city of Kanab in Utah. The description by Fritz Hochstätter under the name Yucca angustissima subsp. kanabensis was published in 1998.

Synonyms are Yucca kanabensis McKelvey and Yucca angustissima var. Kanabensis Reveal .

photos

Yucca angustissima subsp. kanabensis :

  • Growing in sandy soil in June in Utah

  • With remains of inflorescences in October in Utah

Single references

  1. ↑ Cactaceae Review IRT 1 (2): 21. 1998.
  2. ^ Yuccas of the Southwest US 2: 122-126. 1947.
  3. ↑ Intermountain Flora, Vascular Plants of the Intermountain West: 534, 1977.

literature

  • Yucca angustissima subsp. kanabensis . In: Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 USA, self-published. 2000, pp. 42–43, photo material 97, description pp. 212–213, pp. 234–235, ISBN 3-00-005946-6 .

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