Yucca filamentosa subsp. concava

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Yucca filamentosa subsp. concava
Yucca filamentosa subsp. concava Typical specimen in North Carolina

Yucca filamentosa subsp. concava
Typical specimen in North Carolina

Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Palm lilies ( yucca )
Type : Filamentous palm lily ( Yucca filamentosa )
Subspecies : Yucca filamentosa subsp. concava
Scientific name
Yucca filamentosa subsp. concava
( Haw. ) Hochstätter

Yucca filamentosa subsp. concava (English common name "Concava Leaf Yucca") is a subspecies of the filamentous palm lily ( Yucca filamentosa ) in the asparagus family (Asparagaceae).

description

Yucca filamentosa subsp. concava grows solitary or in small colonies and is stemless or forms bushy groups. The concave, blue-green leaves with the rough surface, which are 20 to 40 cm long and 1.5 to 6 cm wide, are typical .

The branched inflorescence that begins far above the leaves is 1 to 2.5 meters high. The pendulous, bell-shaped, white flowers are 3 to 5 cm in length and 3 to 5 cm in diameter. The flowering period is from April to May.

Yucca Filamentosae series Distribution area in the eastern USA

Yucca filamentosa subsp. Concava is frost-hardy to minus 15 ° C in Central Europe with protection in the winter months . The species is rare in collections.

Occurrence

Yucca filamentosa subsp. concava is common in the Atlantic coastal region in the states of North Carolina and South Carolina in plains in sand dunes, grasslands and at the edges of forests at about sea level.

Systematics

The description by Fritz Hochstätter under the name Yucca filamentosa subsp. concava was published in 2001.

Synonyms are Yucca concava Haworth 1819, Yucca concava Lem. 1866, Yucca filamentosa latifolia Engelm. 1873 and Yucca filamentosa concava Baker 1880

photos

Yucca filamentosa subsp. concava :

  • On the beach in sandy bottom in North Carolina

Individual evidence

  1. ↑ Cactus Flower 16: 7–12. 2001.
  2. ↑ Suppl. Pl. Succ. 34. 1819.
  3. ↑ III Hort. 13: 98, 1866. Suppl.
  4. ↑ Trans. Acad. St. Louis 3:52. 1873.
  5. ^ Journ. Linn. Soc. Bot. 18: 28.1880.

literature

  • Yucca filamentosa subsp. concava . In: Fritz Hochstätter (Ed.): Yucca (Agavaceae) . Volume 2 USA, Selbstverlag, 2002, p. 278, photo material p. 283, 286, first description p. 268–271, p. 316, ISBN 3-00-009008-8 .

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