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Hesperoyucca whipplei

Higher Taxonomy
Family: AgavaceaeView DescriptionDichotomous Key

Common Name: CENTURY PLANT FAMILY
Habit: Perennial herb, shrub, tree, fibrous succulent or not, from bulbs or rhizomes. Stem: above ground or not, branched or not. Leaf: simple, deciduous or not, basal or in terminal rosettes, generally sessile, linear, lanceolate, oblanceolate or ovate, fibrous or not, thin and flexible or thick and rigid or succulent; margin entire, fine-serrate, dentate, or with filaments, tips rigid or flexible, with a spine or not. Flower: bisexual; perianth parts 6, in 2 petal-like whorls, free or +- fused; stamens 6, +- fused to perianth, filaments often wide, succulent; ovary superior or inferior, chambers 3, style 1 (thick, poorly defined), stigma head-like or 3-lobed. Fruit: capsule, indehiscent, loculicidal, or septicidal. Seed: few to many, +- flat or ovoid, generally black.
Genera In Family: 23 genera, 637 species: worldwide.
eFlora Treatment Author: Dale W. McNeal, except as noted
Scientific Editor: Dale W. McNeal, Thomas J. Rosatti.
Genus: HesperoyuccaView Description 

Common Name: QUIXOTE PLANT, CHAPARRAL YUCCA
Habit: Shrub-like, dying after fruiting or not; rosettes >=1, clumped or not. Leaf: linear to narrow-lanceolate, thick, +- rigid, glaucous, spine-tipped, margins +- yellow, fine-toothed. Inflorescence: scapose, panicle, cylindric, glabrous, exceeding rosettes; peduncle generally > 2.5 cm wide; bracts generally reflexed. Flower: bisexual; perianth bell-shaped or spheric, parts free, wide-lanceolate, white to +- green or purple-tinged; stamens thick, generally > pistil; ovary superior, stigma head-like. Fruit: erect, obovoid, loculicidal. Seed: many per chamber, 6--9 mm diam, thin, flat, dull black. Chromosomes: x=30.
Species In Genus: 3 species: Arizona, California, northern Mexico. Etymology: (Greek: hesperos (western), yucca)
eFlora Treatment Author: William J. Hess

Hesperoyucca whipplei (Torr.) Trel.
NATIVE
Stem: +- 0. Leaf: 40--100 cm, 0.7--2 cm wide, +- gray-green; expanded base 4--7 cm, 4--7 cm wide, +- white to +- green. Inflorescence: 1 per rosette; 2--40 dm, dense; peduncle 15--35 dm; branches, flowers many. Flower: perianth +- 4 cm, white or cream to +- green, purple-tinged or -tipped or not; filaments linear below, tip club-like; pistil 1--1.5 cm, stigma domed, green, clear-papillate. Fruit: 3--5 cm, 1.5--4 cm wide.
Ecology: Chaparral, coastal, desert scrub; Elevation: < 2500 m. Bioregional Distribution: s SN (esp e slope), SCoR, SW, SNE (Deep Springs Valley), sw edge DMoj; Distribution Outside California: northern Baja California. Flowering Time: Apr--May
Synonyms: Yucca whipplei Torr.; Hesperoyucca whipplei var. graminifolia Trel.; Yucca californica Groenl.; Yucca graminifolia Alph. Wood, illeg.; Yucca nitida S. Watson; Yucca ortgiesiana Roezl ex Ortgies; Yucca whipplei subsp. caespitosa (M.E. Jones) A.L. Haines; Yucca whipplei var. caespitosa M.E. Jones; Yucca whipplei subsp. intermedia A.L. Haines; Yucca whipplei var. intermedia (A.L. Haines) J.M. Webber; Yucca whipplei subsp. parishii (M.E. Jones) A.L. Haines; Yucca whipplei var. parishii M.E. Jones; Yucca whipplei subsp. percursa A.L. Haines; Yucca whipplei var. percursa (A.L. Haines) J.M. Webber
Unabridged Note: Growth form variable; infraspecific taxa questionable.
eFlora Treatment Author: William J. Hess
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Citation for this treatment: William J. Hess 2016. Hesperoyucca whipplei, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=28057, accessed on February 14, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 14, 2016.


Hesperoyucca whipplei
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© 2013 Neal Kramer
Hesperoyucca whipplei
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© 2010 Neal Kramer
Hesperoyucca whipplei
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© 2012 Gary A. Monroe
Hesperoyucca whipplei
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© 2013 Keir Morse
Hesperoyucca whipplei
click for enlargement
© 2013 Keir Morse
Hesperoyucca whipplei
click for enlargement
© 2013 Keir Morse

More photos of Hesperoyucca whipplei in CalPhotos


Geographic subdivisions for Hesperoyucca whipplei:
s SN (esp e slope), SCoR, SW, SNE (Deep Springs Valley), sw edge DMoj;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.