Yucca thompsoniana

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Yucca thompsoniana
Yucca thompsoniana with inflorescence in May in Mexico

Yucca thompsoniana with inflorescence in May in Mexico

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

Yucca thompsoniana (common name : Trans Pecos-Yucca) is a species of palm lily ( Yucca ) in the asparagus family (Asparagaceae).

description

Yucca thompsoniana grows solitary and forms a trunk 1 to 2.5 meters high. The variable blue to blue-green, rough leaves are 25 to 45 cm long, 1 to 1.5 cm, at the base up to 3 cm wide. Like all representatives of the Chaenocarpa series Rupicolae, they are finely serrated on the leaf margins.

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

Occurrence and systematics

Yucca thompsoniana is closely related to Yucca rostrata , another representative of the Chaenocarpa series Rupicolae . However, it is smaller in all dimensions. In Central Europe the plant is frost hardy to –20 ° C when it is dry in the winter months.

Yucca thompsoniana is distributed on the " Edwards Plateau " in Texas and in Mexico in the states of Chihuahua , Coahuila and Nuevo León on plains or flat hills in stony soils at altitudes between 300 and 1500 m. This species often grows together with Yucca carnerosana , Yucca torreyi and various agave and cactus species.

The botanical name honors Charles Henry Thompson .

The first description by William Trelease was published in 1911.

photos

Yucca thompsoniana :

  • Infructescence with dry capsule fruits in Mexico

  • Small colony with inflorescences in Mexico

  • inflorescence

  • Inflorescence in culture

literature

  • Yucca thompsoniana . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 In the Southwest, Midwest of the USA and Canada, Selbstverlag, 2002, pp. 28–29, photo material p. 82, first description pp. 201–202, p. 231, ISBN 3-00-005946-6 .
  • Yucca thompsoniana . Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 3 Mexico and Baja California, self-published, 2004, pp. 50–51, photo material pp. 150–151, p. 280, ISBN 3-00-013124-8 .

Individual evidence

  1. ↑ Mon. Bot. Gard. Ann. Rept. 22: 101, t. 104-107. 1911.

Web links

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