Yucca baccata |
Yucca baccata var. brevifolia |
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banana yucca, datil yucca, Spanish bayonet |
Thornber yucca |
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Habit | Plants often forming open colonies of rosettes, acaulescent or short-caulescent, shorter than 2.5 m. Stems, if present, decumbent, 1–24, aerial or subterranean, simple or sometimes branched, to 2 m. Leaf blade erect, bluish green, concavo-convex, 30–100 × 2–6 cm, rigid, scabrous or glaucous, margins brown. | Plants caulescent. | ||||
Stems | 1–24, aerial, often branched, some reaching 2 m. Leaf margins filiferous. |
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Inflorescences | erect, paniculate, dense, arising completely within to mostly extending beyond rosettes, ovoid, 6–8.2 dm, glabrous, rarely slightly pubescent; peduncle scapelike, to 0.8 m. Flowers pendent, 5–13 cm, nearly as wide; perianth campanulate; tepals connate basally to form shallow floral cup 7–12 mm, usually cream-colored, occasionally tinged with purple, 4.5–13 cm; filaments connate proximally into collarlike structure, 3.2–12 mm, fleshy, pubescent; anthers 5–7 mm; pistil 4.5–8 × 0.7–1.2 cm (usually 4–5(–7) times longer than broad); ovary 0.7–1.2 cm; style 5–7 mm; stigmas distinct. |
arising almost completely within to mostly extending beyond rosettes; peduncle to 0.3 m. |
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Fruits | pendent, baccate, indehiscent, elongate, 5–23 × 4–7.5 cm, fleshy, succulent. |
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Seeds | dull black, obovate, 7–11 mm diam., 3 mm thick, rugose. |
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Yucca baccata |
Yucca baccata var. brevifolia |
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Phenology | Flowering spring–early summer. | |||||
Habitat | Hills, mesas, flats in Sonoran Desert, desert grasslands, oak woodlands, 500–2000 m | |||||
Distribution |
North America; Mexico (Chihuahua, Sonora)
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AZ; NM; Mexico (Sonora) |
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 427. | FNA vol. 26, p. 427. | ||||
Parent taxa | Agavaceae > Yucca | Agavaceae > Yucca > Yucca baccata | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Y. brevifolia, Y. arizonica, Y. confinis, Y. thornberi, Y. treleasei | |||||
Name authority | Torrey: in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 221. (1859) | L. D. Benson & R. A. Darrow: Amer. J. Bot. 30: 234. (1943) | ||||
Web links |