familyAgavaceae
genusYucca
speciesYucca baccata
varietyYucca baccata var. brevifolia

Yucca baccata var. brevifolia

L. D. Benson & R. A. Darrow

Amer. J. Bot. 30: 234. 1943.

William J. Hess, R. Laurie Robbins
Common names: Thornber yucca
Basionym: Yucca brevifolia Schott ex Trelease Rep. (Annual) Missouri Bot. Gard. 13: 100, plates 57–59. 1902, Yucca treleasei J. F. Macbride 1918
Synonyms: Yucca arizonica McKelvey Yucca confinis McKelvey Yucca thornberi McKelvey
Treatment appears in FNA Volume 26. Treatment on page 427.

Plants caulescent. Stems 1–24, aerial, often branched, some reaching 2 m. Leaf margins filiferous. Inflorescences arising almost completely within to mostly extending beyond rosettes; peduncle to 0.3 m.


Phenology: Flowering spring–early summer.
Habitat: Hills, mesas, flats in Sonoran Desert, desert grasslands, oak woodlands, 500–2000 m

Distribution

V26 875-distribution-map.jpg

Ariz., N.Mex., Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"thick" is not a number. "thin" is not a number."dm" is not declared as a valid unit of measurement for this property. "dm" is not declared as a valid unit of measurement for this property.

... more about "Yucca baccata var. brevifolia"
RDF feed
Anther dehiscence
longitudinal +
Anther fixation
versatile +
Anther some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Apex fragility
pliable +
Apex odor or shape
pungent +
Apex pubescence
glandular-pubescent +  and glandular +
Apex shape
sharp-pointed +
Apex texture
rigid +
Author
William J. Hess +  and R. Laurie Robbins +
Authority
L. D. Benson & R. A. Darrow +
Basionyms
Yucca brevifolia +  and Yucca treleasei +
Blade fragility
pliable +
Blade pubescence
glaucous +
Blade shape
elliptic +, ovate +, oblanceolate +, lanceolate +  and linear +
Blade size
expanded +
Blade texture
fleshy +  and rigid +
Bract architecture or shape
leaflike +
Bract orientation
reflexed +, erect +  and ascending +
Bract shape
scale-like +
Colony architecture
open +
Common name
Thornber yucca +
Distribution
Ariz. +, N.Mex. +  and Mexico (Sonora) +
Fiber length
elongated +
Filament architecture or pubescence or relief
smooth +
Filament fusion
connate +
Filament pubescence
pubescent +
Filament pubescence or relief or texture
granular +
Filament relief
papillose +
Filament shape
flattened +
Filament some measurement
0.32 cm3.2 mm <br />0.0032 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Filament texture
fleshy +
Filament width
broadened +
Floral-cup coloration
tinged with purple +  and cream-colored +
Floral-cup depth
shallow +
Floral-cup some measurement
4.5 cm45 mm <br />0.045 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Flower architecture
6-merous +
Flower orientation
pendent +
Flower reproduction
bisexual +
Flower some measurement
5 cm50 mm <br />0.05 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Fruit architecture
baccate +
Fruit dehiscence
indehiscent +
Fruit length
5 cm50 mm <br />0.05 m <br /> (23 cm230 mm <br />0.23 m <br />) +
Fruit orientation
pendent +
Fruit shape
elongate +
Fruit texture
succulent +  and fleshy +
Fruit width
4 cm40 mm <br />0.04 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
Habitat
Hills, mesas, flats in Sonoran Desert, desert grasslands, oak woodlands, 500–2000 m +
Illustration copyright
Flora of North America Association +
Illustrator
Bee F. Gunn +
Inflorescence architecture
bracteate +
Inflorescence arrangement
paniculate +
Inflorescence density
dense +
Inflorescence orientation
arising +
Inflorescence pubescence
pubescent +  and glabrous +
Inflorescence shape
ovoid +
Inflorescence size
huge +
Leaf-blade coloration
bluish green +
Leaf-blade length
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Leaf-blade orientation
erect +
Leaf-blade pubescence
glaucous +  and scabrous +
Leaf-blade shape
concavo-convex +
Leaf-blade texture
rigid +
Leaf-blade width
2cm;6cm +
Leaf architecture
sessile +
Leaf duration
long-lived +  and annual +
Leaf margin architecture
filiferous +
Leaf position
cauline +
Margin architecture
filiferous +
Margin architecture or shape
dentate +, serrulate +  and entire +
Margin arrangement
separating +
Margin coloration
brown +
Margin shape
denticulate +  and entire +
Margin texture
corneous +
Number of lower taxa
0 +
Ovary architecture or structure in adjective form
6-locular +  and 3-locular +
Ovary coloration
green +
Ovary placentation
parietal +
Ovary position
superior +
Ovary shape
6-lobed +
Ovary some measurement
0.7 cm7 mm <br />0.007 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
Pedicel architecture
not +  and articulate +
Pedicel fusion
distinct +
Pedicel presence
absent +
Peduncle architecture or shape
scapelike +
Peduncle pubescence
pubescent +
Peduncle some measurement
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Perianth shape
campanulate +
Perianth texture
semisucculent +
Phenology
Flowering spring–early summer. +
Pistil length
4.5 cm45 mm <br />0.045 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Pistil length or size or width
4-5(-7) times longer than broad +
Pistil shape
oblong-cylindrical +  and obovoid +
Pistil width
0.7 cm7 mm <br />0.007 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
Publication title
Amer. J. Bot. +
Publication year
1943 +
Reference
None +
Scape diameter
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Seed coloration
black +
Seed diameter
7mm;11mm +
Seed quantity
many +
Seed reflectance
dull +
Seed relief
rugose +
Seed shape
obovate +
Seed thickness
3 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V26/V26 875.xml +
Special status
Illustrated +
Spine height or length or size
short +
Spine length or size
long +
Stamen position
exserted +  and included +
Stamen quantity
6 +
Stem architecture
branched +
Stem growth form or orientation
decumbent +
Stem location
aerial +
Stem presence
absent +
Stem quantity
1 +  and 24 +
Stem some measurement
0 cm0 mm <br />0 m <br /> (200 cm2,000 mm <br />2 m <br />) +
Stigma architecture or shape
subcapitate +
Stigma coloration
white;pale green +
Stigma fusion
distinct +
Stigma quantity
1 +  and 3 +
Stigma shape
list +  and count +
Stigma some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Structure shape
collar-like +
Style coloration
white +  and dark green +
Style position
exserted +  and included +
Style some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Style width
thick +
Synonyms
Yucca arizonica +, Yucca confinis +  and Yucca thornberi +
Taxon family
Agavaceae +
Taxon name
Yucca baccata var. brevifolia +
Taxon parent
Yucca baccata +
Taxon rank
variety +
Tepal coloration
whitish;cream or tinged slightly with green or tinged slightly with purple +
Tepal fusion
connate +
Tepal pubescence
pubescent +
Tepal quantity
6 +
Tepal texture
fleshy +
Volume
Volume 26 +
Whole organism architecture
caulescent +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism habitat
epiphytic +
Whole organism location
aboveground +  and subterranean +
Whole organism reproduction
polygamodioecious +, dioecious +, monoecious +, polycarpic +  and monocarpic +
Whole organism size
small;gigantic +
Whole organism some measurement
2.5 (?) +
Whorl quantity
2 +
Whorl shape
petal-like +
X chromosome quantity
30 +  and 25 +