Yucca arkansana subsp. louisianensis

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Yucca arkansana subsp. louisianensis
Yucca arkansana subsp. louisianensis Typical specimen in the grasslands of Louisiana

Yucca arkansana subsp. louisianensis
Typical specimen in the grasslands of Louisiana

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

Yucca arkansana subsp. louisianensis (English common names "Grass Yucca", "Louisiana Yucca") is a subspecies of the plant species Yucca arkansana in the asparagus family (Asparagaceae).

description

Yucca arkansana subsp. louisianensis grows solitary or forms small groups. The variable, blue-green, soft leaves are 20 to 40 cm long and 1 to 2 cm wide. It forms twisted fibers on the leaf margins.

The branched inflorescence that begins above the leaves is 1 to 2.5 meters high. The pendulous, bell-shaped, spherical, white to cream-colored flowers have a length and a diameter of 3 cm. The species has a significantly longer inflorescence than the subspecies arkansana . The flowering period is from May to June.

Yucca arkansana subsp. louisianensis is frost hardy to minus 20 ° C in Central Europe . Ten-year-old specimens are in F. Hochstätter's collection unprotected in the open air.

distribution

Yucca arkansana subsp. louisianensis is common in plains, sparse woodlands, and grasslands in the US states of Louisiana , Arkansas, and Texas .

Systematics

The name was chosen after one of the distribution areas in Louisiana. The valid description by Fritz Hochstätter under the name Yucca arkansana subsp. louisianensis was published in 1999.

Synonyms are Yucca louisianensis Trel. 1977 and Yucca arkansana var. Paniculata McKelvey 1947.

photos

Yucca arkansana subsp. lousianensis :

  • Ten years old, blooming specimen in the collection of F. Hochstätter

Individual evidence

  1. ↑ Cactus Flower 16: 25–31. 1999.
  2. ↑ Mon. Bot. Gard. Rep. 13: 64.1902 (in part as to Ball 558 and p. 34, fig. 2)
  3. ^ Yuccas of the Southwest US 2: 156-160. 1947.

literature

  • Yucca arkansana subsp. louisianensis . In: Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 1 USA, self-published. 2000, pp. 59–60, photo material S 107, description p. 204, pp. 234–235, ISBN 3-00-005946-6 .

Web links