Yucca glauca

• Overview
• Interesting Facts
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Overview

Threatened

Interesting Facts

Common Names

Click on the language to view common names.

Description

Genus Yucca

Plants perennial , acaulescent or caulescent , sometimes subscapose , sometimes arborescent , usually branching extensively, from woody, subterranean or aboveground caudices, or single stems. Leaves sessile, in rosettes on caudices or at branch ends; blade linear-lanceolate, expanded basally, usually rigid , occasionally fleshy , margins entire or denticulate , often filiferous and separating into elongated fibers, corneous , apex mostly sharp-pointed. Scape, when present, usually less than 2.5 cm diam. Inflorescences erect or rarely pendent, paniculate or racemose, sometimes paniculate proximally and racemose distally, bracteate , occasionally pubescent ; bracts ascending , erect, or rarely reflexed ; peduncle sometimes scapelike, sometimes extending beyond leaves, sometimes pubescent. Flowers bisexual ; perianth campanulate or globose ; tepals 6, similar, fleshy, distinct to or connate at base , whitish to cream or tinged slightly with green or purple, occasionally pubescent; stamens 6; filaments flattened, as wide as anthers , smooth , papillose , or granular , fleshy; pistil obovoid or oblong-cylindrical; ovary superior, usually green, 3-locular or 6-locular with false septa, 6-lobed; style white to dark green, often thick; stigmas usually 3, sometimes 1 and subcapitate , white to pale green, 1-2 mm. Fruits erect or pendent, capsular or baccate . Seeds many per locule, usually black, occasionally gray, flattened, round , rarely obovate or ovate . x = 25, 30.

Species ca. 35-40: e coastal plain , se, sc, w United States, n, c, w Mexico, n Central America.

W. Trelease (1902) recognized Hesperoyucca, Clistoyucca, and Samuela as segregates from, but closely related to, Yucca. S. D. McKelvey (19381947) returned them to Yucca, recognizing sections Hesperoyucca and Clistoyucca, and placing Samuela in section Sarcocarpa. However, McKelvey indicated that there is ample justification for recognizing Hesperoyucca at genus level, since a number of flower and fruit characters differ from those in all other sections. Recent DNA evidence provides strong support for separate recognition of Hesperoyucca (M. A. Hanson 1993; D. J. Bogler 1994; D. J. Bogler and B . B. Simpson 1995, 1996; K . H. Clary 1997). Clarys data indicate that it is more closely related to Hesperaloe than to Yucca, and that Clistoyucca and Samuela should be retained in Yucca.

Yuccas are often cultivated in many places in the United States, particularly in the south. They are not easily identified, particularly in herbarium specimens, and collectors should be certain to record information about the habits and sizes of plants, and the colors of ovaries, styles, and stigmas. If possible, field photographs of the pistil and stamens should accompany the specimens.[1]

Physical Description

Habitat

Prairies and waste areas in sandy or limestone soils; 500--2600 m [2].

Biology

Reproduction

Duration: Perennial

Growth

Culture: Space 24-36" apart.

Soil: Minimum pH: 6.6 • Maximum pH: 8.5

Sunlight: Sun Exposure: Sun to Partial Shade.

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b. (map)

Taxonomy

Synonyms

Y. glauca var. gurneyi Mckelvey • Y. glauca var. stricta (J. Sims) Trelease • Y. stricta J. Sims • Yucca angustifolia Pursh • Yucca angustissima Engelm. • Yucca flaccida Haw. var. integra Trel.

Notes

Publishing author : Nutt. Publication : Cat. Pl. Upper Louisiana no. 89 1813 [ante Aug 1813]

Similar Species

Members of the genus Yucca

ZipcodeZoo has pages for 90 species, subspecies, varieties, forms, and cultivars in this genus:

Y. aloifolia (Aloe Yucca) · Y. aloifolia L. 'Marginata' (Variegated Spanish Bayonet) · Y. angustissima (Narrow-Leaved Yucca) · Y. angustissima var. angustissima (Narrowleaf Yucca) · Y. angustissima var. kanabensis (Kanab Yucca) · Y. angustissima var. toftiae (Toft's Yucca) · Y. arkansana (Arkansas Yucca) · Y. baccata (Banana Yucca) · Y. baccata var. baccata (Banana Yucca) · Y. baccata var. brevifolia (Spanish Dagger) · Y. baccata var. vespertina (Banana Yucca) · Y. baileyi (Navajo Yucca) · Y. baileyi var. baileyi (Bailey's Yucca) · Y. baileyi var. intermedia (Intermediate Yucca) · Y. baileyi var. navajoa (Navajo Yucca) · Y. brevifolia (Joshua Tree) · Y. brevifolia f. herbertii (Joshua Tree) · Y. brevifolia herbertii (Joshua Tree) · Y. brevifolia jaegeriana var. jaegeriana (Jaeger Joshua Tree) · Y. brevifolia var. brevifolia (Joshua Tree) · Y. brevifolia var. jaegeriana (Jaeger's Joshua Tree) · Y. campestris (Plains Yucca) · Y. carnerosana (Giant Spanish Dagger) · Y. cernua (Nodding Yucca) · Y. constricta (Buckley Yucca) · Y. decipiens (Palma China) · Y. desmetiana (Yucca) · Y. elata (Soaptree Yucca) · Y. elata Engelm. var. verdiensis (McKelvey) Reveal (Soaptree Yucca) · Y. elata utahensis (Utah Yucca) · Y. elata var. elata (Soaptree Yucca) · Y. elata var. utahensis (Utah Yucca) · Y. elata var. verdiensis (Soaptree Yucca) · Y. elephantipes 'Variegata' (Variegated Spineless Yucca) · Y. endlichiana (Yucca) · Y. faxoniana (Carneros Yucca) · Y. filamentosa (Adam's Needle) · Y. filamentosa 'Bright Edge' (Adams Needle) · Y. filamentosa 'Golden Sword' (Golden Sword Yucca) · Y. filamentosa'Hofer's Blue' (Hofer's Blue Adam's Needle) · Y. filamentosa 'Ivory Tower' (Ivory Tower Yucca) · Y. filamentosa 'Variegata' (Needle Palm) · Y. filifera (Tree Yucca) · Y. filifera 'Garland Gold' (Garland Gold Weakleaf Yucca) · Y. flaccida 'Garland Gold' (Thread Yucca) · Y. flaccida 'Gold Garland' (Gold Garland Yucca) · Y. funifera (New Mexico False Yucca) · Y. glauca (Bear Grass) · Y. glauca var. glauca (Narrowleaf Yucca) · Y. glauca var. gurneyi (Great Plains Yucca) · Y. glauca var. stricta (Great Plains Yucca) · Y. gloriosa (Moundlily Yucca) · Y. gloriosa 'Bright Star' (Spanish Dagger 'bright Star') · Y. gloriosa 'Variegata' (Variegated Soapwort) · Y. grandiflora (Large-Flowered Yucca) · Y. guatemalensis (Bluestem Yucca) · Y. harrimaniae (Spanish Bayonet) · Y. harrimaniae var. harrimaniae (Harriman's Spanish Bayonet) · Y. harrimaniae var. neomexicana (New Mexico Spanish Bayonet) · Y. harrimaniae var. sterilis (Spanish Bayonet) · Y. karlsruhensis (Karlsruh Yucca) · Y. louisianensis (Gulf Coast Yucca) · Y. nana (Dwarf Yucca) · Y. necopina (Brazos River Yucca) · Y. pallida (Pale Yucca) · Y. peninsularis (Yucca) · Y. recurvifolia 'Banana Split' (Curve-Leaf Yucca) · Y. recurvifolia 'Hinvargas' (Curve-Leaf Yucca) · Y. recurvifolia 'Margaritaville' (Curve-Leaf Yucca) · Y. recurvifolia 'Monca' (Banana Split® Soft Leaf Yucca) · Y. reverchonii (Plateau Yucca) · Y. rigida (Blue Yucca) · Y. rostrata (Big Bend Yucca) · Y. rupicola (Twistedleaf Yucca) · Y. schidigera (Mojave Yucca) · Y. schottii (Mountain Yucca) · Y. tenuistyla (Whiterim Yucca) · Y. thompsoniana (Beaked Yucca) · Y. torreyi (Great Yucca) · Y. treculeana (Don Quixote's Lace) · Y. treculeana Carr. var. succulenta McKelvey (Don Quixote's Lace) · Y. treculeana var. succulenta (Don Quixote's Lace) · Y. treculeana var. treculeana (Don Quixote's Lace) · Y. valida (Datilillo) · Y. whipplei (Chaparral Yucca) · Y. whipplei intermedia (Chaparral Yucca) · Y. whipplei var. caespitosa (Chaparral Yucca) · Y. whipplei var. whipplei (Chaparral Yucca) · Y. whipplei whipplei var. whipplei (Chaparral Yucca) · Y. × karlsruhensis (Karlsruh Yucca)

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Further Reading

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• A manual of poisonous plants: chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations / by L.H. Pammel. Cedar Rapids, Iowa: Torch Press, 1910-1911. url p. 63.
• A practical guide to garden plants, containing descriptions of the hardiest and most beautiful annuals and biennials, hardy herbaceous and bulbous perennials, hardy water and bog plants, flowering and ornamental trees and shrubs, conife London;Longmans, Green, 1901. url , p. 821.
• A preliminary classification of the plant communities of northeastern Montana / Robert L. DeVelice [et al.]. Helena, MT: Montana Natural Heritage Program, c1991. url , , , , , , , , , , , .
• A preliminary report on the biology of Harding County, northwestern South Dakota / by Stephen S. Visher. Pierre, S.D.: State Publishing Co., 1914. url p. 39.
• Agronomy; a course in practical gardening for high schools, by Willard Nelson Clute. .. Boston, Ginn and Company, [c1913] url p. 125.
• Among school gardens, by M. Louise Greene. New York, Charities publication committee, 1910. url p. 290.
• An illustrated flora of the northern United States, Canada and the British possessions: from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian / by Nathaniel Lord Britton and Hon. Addison Brown. New York: Scribner, 1913. url p. 512.
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Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed March 27, 2012.

Data Sources

Accessed through GBIF Data Portal December 01, 2007:

• Missouri Botanical Garden, Missouri Botanical Garden
• USDA PLANTS, USDA PLANTS Database

Identifiers

• Biodiversity Heritage Library NamebankID: 2662741
• Catalogue of Life Accepted Name Code: Kew-291785
• Global Biodiversity Information Facility Taxonkey: 13754851
• Globally Unique Identifier: urn:lsid:ipni.org:names:543703-1
• GRIN Nomen Number: 42153
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 43142
• International Plant Names Index (IPNI) ID: 1189808-1
• U.S.D.A. Plant Symbol: YUGLG
• Zipcode Zoo Species Identifier: 67012

Footnotes

1. William J. Hess & R. Laurie Robbins "Yucca". in Flora of North America Vol. 26 Page 413, 414, 423, 424, 437, 440. Oxford University Press. Online at EFloras.org. [back]
2. "Yucca glauca". in Flora of North America Vol. 26 Page 426, 432, 436, 437. Oxford University Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.