familyAgavaceae
genusYucca

Difference between revisions of "Yucca baileyi"

Wooton & Standley

Contr. U.S. Natl. Herb. 6: 114. 1913.

Common names: Alpine yucca
Endemic
Synonyms: Yucca baileyi var. navajoa (J. M. Webber) J. M. Webber Yucca navajoa McKelvey Yucca standleyi
Treatment appears in FNA Volume 26. Treatment on page 435. Mentioned on page 426, 432, 436, 437.
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|common_names=Alpine yucca
 
|common_names=Alpine yucca
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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|basionyms=
 
|basionyms=
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Yucca baileyi var. navajoa
 
|name=Yucca baileyi var. navajoa
 
|authority=(J. M. Webber) J. M. Webber
 
|authority=(J. M. Webber) J. M. Webber
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|rank=variety
 
}} {{Treatment/ID/Synonym
 
}} {{Treatment/ID/Synonym
 
|name=Yucca navajoa
 
|name=Yucca navajoa
 
|authority=McKelvey
 
|authority=McKelvey
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|rank=species
 
}} {{Treatment/ID/Synonym
 
}} {{Treatment/ID/Synonym
 
|name=Yucca standleyi
 
|name=Yucca standleyi
|authority=unknown
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|hierarchy=Agavaceae;Yucca;Yucca baileyi
 
|hierarchy=Agavaceae;Yucca;Yucca baileyi
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name=Yucca baileyi
 
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|publication title=Contr. U.S. Natl. Herb.
 
|publication title=Contr. U.S. Natl. Herb.
 
|publication year=1913
 
|publication year=1913
|special status=
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|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V26/V26_899.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_899.xml
 
|genus=Yucca
 
|genus=Yucca
 
|species=Yucca baileyi
 
|species=Yucca baileyi

Latest revision as of 21:18, 5 November 2020

Plants solitary or cespitose, forming colonies 1.3–2 m diam., acaulescent, erect or semierect, up to 0.2 m; rosettes usually small, symmetrical. Leaf blade yellowish green, plano-convex or plano-keeled, occasionally falcate, widest near middle, 25–45(–50) × 0.6–0.9 cm, rigid, smooth adaxially and abaxially, margins entire, recurved, filiferous, whitish, apex spinose, spine acicular, to 3.2 mm. Inflorescences racemose, arising within or just beyond rosettes, 2.5–4.5(–8.5) dm; bracts erect, purplish; peduncle scapelike, 0.1–0.2 m, less than 2.5 cm diam. Flowers pendent; perianth campanulate; tepals distinct, ovate to obovate or elliptic, 5–6.5 × 1.5–3.2 cm; filaments to 2 cm, finely pubescent; pistil green, 2.5–3.2 × 0.8 cm; style white, 7 mm; stigmas lobed. Fruits erect, capsular, dehiscent, oblong-cylindric, not usually constricted, 5 × 2.5 cm, dehiscence septicidal. Seeds dull black, thin, 6–10 mm.


Phenology: Flowering spring.
Habitat: Mountains, adjacent woodlands and grasslands
Elevation: 1300–2500 m

Distribution

V26 899-distribution-map.jpg

Ariz., Colo., N.Mex., Utah.

Discussion

Some populations of Yucca baileyi comprise compact colonies of semierect, branched plants instead of scattered, cespitose individuals. These populations were recognized as var. navajoa by J. M. Webber (1953), who noted that Y. baileyi possibly hybridizes with Y. glauca and Y. angustissima.

Selected References

None.

Lower Taxa

None.
... more about "Yucca baileyi"
William J. Hess +  and R. Laurie Robbins +
Wooton & Standley +
Alpine yucca +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1300–2500 m +
Mountains, adjacent woodlands and grasslands +
Flowering spring. +
Contr. U.S. Natl. Herb. +
Yucca baileyi var. navajoa +, Yucca navajoa +  and Yucca standleyi +
Yucca baileyi +
species +