Yucca rostrata

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Yucca rostrata
Yucca rostrata a few weeks after flowering with dried, torn capsule fruits in Texas

Yucca rostrata a few weeks after flowering with dried, torn capsule fruits in Texas

Systematics
Monocots
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Palm lilies ( yucca )
Type : Yucca rostrata
Scientific name
Yucca rostrata
Engelm. ex Trel.

Yucca rostrata (English common name : Big Bend-Yucca) is a species of palm lily ( Yucca ) in the asparagus family (Asparagaceae).

description

Yucca rostrata grows solitary and forms a trunk 1 to 4 meters high. The variable blue to blue-green, rough leaves are 25 to 60 cm long and 1 to 1.5 cm wide. Like all representatives of the Chaenocarpa series Rupicolae, they are finely serrated on the leaf margins.

The densely branched inflorescence that begins above the leaves is 1 to 2 meters high. The pendulous, bell-shaped, white, cream-colored flowers are 3 to 6 cm long and up to 3.5 cm wide. The flowering period extends from March to April.

It is related to Yucca thompsoniana another representative of the section Chaenocarpa series Rupicolae . However, it is larger in all dimensions.

In Central Europe, Yucca rostrata is frost hardy to –20 ° C when it is dry in the winter months. This species has been cultivated in the F. Hochstätter collection for over a decade.

distribution

Yucca rostrata is common on the Edwards Plateau in Texas and in Mexico in the states of Chihuahua , Coahuila on plains or flat hills in stony soils at altitudes between 600 and 800 m. This species often grows in association with various agave and numerous cactus species.

Systematics

The first description by Georg Engelmann under the name Yucca rostrata was published in 1902.

photos

Yucca rostrata :

  • On the Rio Grande in Texas

  • Old specimen with remains of flowers in Texas

  • In May in Texas

  • 15 year old copy in the collection of F. Hochstätter in Mannheim in Kultur

literature

  • Yucca rostrata . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 In the Southwest, Midwest of the USA and Canada, Selbstverlag, 2002, pp. 29–30, photo material pp. 82–83, first description p. 209, p. 231, ISBN 3-00-005946-6 .
  • Yucca rostrata . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 3 Mexico and Baja California, self-published, 2004, p. 50, photo material p. 150, p. 280, ISBN 3-00-013124-8 .

Individual evidence

  1. ↑ Mon. Bot. Gard. Ann. Rept. 13: 68.1902.

Web links

Commons : Yucca rostrata  - collection of images, videos and audio files