Stanleya albescens

M. E. Jones

Zoë 2: 17. 1891.

Endemic
Treatment appears in FNA Volume 7. Treatment on page 696.

Biennials; (glaucous), mostly glabrous. Stems unbranched or branched (few) proximally and distally, 2–8 (–10) dm. Basal leaves: petiole 1–6.5 cm; blade (fleshy), broadly lanceolate to oblanceolate or ovate in outline, (1.6–) 3–17 (–20) cm × (10–) 20–80 mm, margins lyrate-pinnatifid or runcinate. Cauline leaves petiolate; blade similar to basal, smaller distally, margins sometimes entire. Racemes somewhat dense. Fruiting pedicels horizontal to divaricate-ascending, (straight), (4–) 5–11 (–15) mm. Flowers: sepals oblong-linear, (9–) 11–18 mm; petals pale-yellow to whitish, orbicular to broadly obovate, 12–18 × (2.5–) 3–6 mm, claw 5–8 mm, wider at base, pubescent inside apically; filaments 1–2.2 mm, base pilose; anthers 3–5.5 mm; gynophore 10–22 (–26) mm, hirsute at base. Fruits suberect to ascending, slightly curved inward, subterete, 2.3–6 cm × 1–2 mm; ovules 24–44 per ovary; style 0.2–0.5 mm. Seeds ovoid to oblong, 1.4–2 × 0.8–0.9 mm.


Phenology: Flowering May–Jun.
Habitat: Barren clay slopes and flats, open clay knolls, gumbo clay bluffs, Mancos shale
Elevation: 1300-2100 m

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Stanleya albescens"
0.3 cm3 mm <br />0.003 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Ihsan A. Al-Shehbaz +
M. E. Jones +
appendaged +  and unappendaged +
2-pinnatifid +, 1-pinnatifid +, lobed +  and entire +
smaller +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
distinct +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
differentiated +
emarginate +  and entire +
accumbent +  and incumbent +
Ariz. +, Colo. +  and N.Mex. +
1300-2100 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
zygomorphic +  and actinomorphic +
latiseptate +  and long-stipitate +
2.3cm;6cm +
suberect +  and ascending +
subterete +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
2.2 cm22 mm <br />0.022 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Barren clay slopes and flats, open clay knolls, gumbo clay bluffs, Mancos shale +
sessile +  and petiolate +
alternate +, not +  and rosulate +
basal +  and cauline +
connate +  and distinct +
decurrent +
runcinate;lyrate-pinnatifid +
17 cm170 mm <br />0.17 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
3 cm30 mm <br />0.03 m <br /> (17 cm170 mm <br />0.17 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
rudimentary +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1 cm10 mm <br />0.01 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
Flowering May–Jun. +
trinucleate +  and 3(-11)-colpate +
1.1 cm11 mm <br />0.011 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
elongated +
horizontal +  and divaricate-ascending +
slender +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
mucilaginous +
aseriate +, uniseriate +  and biseriate +
not +  and mucilaginous +
White (?) +, Black (?) +, Brown (?) +  and Yellow (?) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
ovoid +  and oblong +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
persistent +  and caducous +
distinct +
spreading +  and reflexed +
1.1 cm11 mm <br />0.011 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
ascending +  and erect +
entire +  and capitate +
2-lobed +  and entire +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Cruciferae +
Stanleya albescens +
Stanleya +
species +
dendritic +  and simple +
coiled +, 1-7-veined +  and veined +
anastomosing +
perennial +, biennial +  and annual +
subshrub +  and shrub +
aquatics +  and terrestrial +
pubescent +  and glabrous +