Comments
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J. M. Webber (1953) believed Yucca intermedia to be a hybrid between Y. glauca and Y. angustissima or Y. baileyi. S. D. McKelvey (1938–1947) recognized var. ramosa based primarily on paniculate inflorescences. Plants of this type are found in the southeastern area of the species range, where populations with only paniculate inflorescences occur, as well as populations with racemose and paniculate inflorescences.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Plants cespitose, forming widely separated colonies, acaulescent or occasionally caulescent; rosettes 1–5 per colony, usually small. Stems erect, simple, shorter than 1 m. Leaf blade linear, plano-convex or plano-keeled, widest near middle, 33–65 × 0.5–0.8 cm, slightly flexible, margins entire, white to grayish. Inflorescences mostly green, racemose, sometimes paniculate proximally, occasionally paniculate and long-racemose distally, arising within rosettes, (5–)7–13 dm, glabrous; bracts erect; peduncle scapelike, 0.1–0.5 m, to 2.5 cm diam. Flowers pendent; perianth campanulate or rarely globose; tepals distinct, cream or greenish, often tinged rose or rosy brown, narrowly elliptic to broadly elliptic, 5.5–7 × 2–3.2 cm; filaments to 2.5 cm; anthers 3.2–4.8 mm; pistil 1.5–3.2 cm; style white or pale yellowish green, 7 mm; stigmas lobed. Fruits erect, capsular, dehiscent, oblong-cylindric, occasionally constricted at middle, 5–5.7 × 2–2.5 cm, dehiscence septicidal. Seeds glossy or dull black, thin, 6–10 mm.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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Juniper-pinyon pine woodlands to adjacent grasslands; 1100--2100m.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
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Yucca baileyi Wooton & Standley var. intermedia (McKelvey) Reveal; Y. intermedia var. ramosa McKelvey
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Yucca intermedia: Brief Summary
provided by wikipedia EN
Yucca intermedia McKelvey is a species in the family Asparagaceae, with the common name intermediate Yucca. It is a relatively small plant forming clumps of rosettes. It is native to dry steppes, juniper-pinyon woodlands and savannahs, and desert grassland areas of the northwestern quarter of the US State of New Mexico, then into the Four Corners region, at an elevation of 1,400–2,300 m (4,600–7,500 ft).
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