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World Checklist of Selected Plant Families (WCSP)

Yucca filamentosa subsp. concava (Haw.) Hochstätter, Kaktusblüte 2001: 11 (2001).

This name is a synonym.

Accepted Name: Yucca flaccida Haw., Suppl. Pl. Succ.: 34 (1819).
Family: Asparagaceae
Homotypic Names:

* Yucca concava Haw., Suppl. Pl. Succ.: 34 (1819).

Yucca filamentosa var. concava (Haw.) Rob., Subtrop. Gard.: 212 (1871).

Yucca filamentosa f. concava (Haw.) Voss, Vilm. Blumengärtn. ed. 3, 1: 1057 (1895).

* Basionym/Replaced Synonym

Original Compiler: R.Govaerts