Descurainia pinnata subsp. glabra

(Wooton & Standley) Detling

Amer. Midl. Naturalist 22: 507. 1939.

Basionym: Sophia glabra Wooton & Standley Contr. U.S. Natl. Herb. 16: 127. 1913
Synonyms: Descurainia pinnata var. glabra (Wooton & Standley) Shinners
Treatment appears in FNA Volume 7. Treatment on page 528. Mentioned on page 527.

Plants eglandular, not canescent. Stems unbranched basally, branched distally. Racemes: rachis glabrous, eglandular. Fruiting pedicels divaricate to horizontal or descending, forming 70–90 (–100) º angle, 4–10 (–15) mm. Flowers: sepals rose (at least apically), 0.8–1.5 mm; petals 1–1.8 × 0.3–0.7 mm.


Phenology: Flowering Feb–Apr(-Jun).
Habitat: Sandy washes and beds, scrub and bush communities, granitic sand, under junipers, oak and pine woodlands, stream beds, sagebrush, floodplains, limestone outcrops
Elevation: 300-2400 m

Distribution

V7 834-distribution-map.gif

Ariz., Calif., Nev., N.Mex., Utah, Mexico (Baja California), Mexico (Chihuahua), Mexico (Coahuila), Mexico (Hidalgo), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"elongated" is not a number."thick" 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.

1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
oblong +  and ovate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Barbara E. Goodson +  and Ihsan A. Al-Shehbaz +
(Wooton & Standley) Detling +
Sophia glabra +
appendaged +  and unappendaged +
not auriculate +
dissected +, repand +, sinuate +, crenate +  and dentate +
oblong;oblanceolate +
smaller +
1 cm10 mm <br />0.01 m <br /> (15 cm150 mm <br />0.15 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
petiolate +  and sessile +
well-developed +
distinct +
not +  and differentiated +
emarginate +  and entire +
Ariz. +, Calif. +, Nev. +, N.Mex. +, Utah +, Mexico (Baja California) +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Hidalgo) +  and Mexico (Sonora) +
300-2400 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
actinomorphic +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
oblanceolate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
erect +  and ascending +
not torulose +  and clavate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Sandy washes and beds, scrub and bush communities, granitic sand, under junipers, oak and pine woodlands, stream beds, sagebrush, floodplains, limestone outcrops +
oblanceolate;ovate +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
dentate +  and entire +
toothed;entire +
0.1 cm1 mm <br />0.001 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
white +  and yellow +
1mm;1.8mm +
rudimentary +
oblong +, oblanceolate +  and obovate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.6 cm36 mm <br />0.036 m <br />) +
Flowering Feb–Apr(-Jun). +
trinucleate +  and 3(-11)-colpate +
Amer. Midl. Naturalist +
bracteate;ebracteate +
1.8 cm18 mm <br />0.018 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
recurved +, descending +, horizontal +  and ascending +
slender +
0.4 cm4 mm <br />0.004 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
mucilaginous +
not +  and mucilaginous +
reddish-brown +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
persistent +  and caducous +
distinct +
spreading +  and ascending +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
reduced +
terete +, torulose +, obovoid +, ellipsoid +, fusiform +, clavate +, oblong +  and linear +
terete +, torulose +, obovoid +, ellipsoid +, fusiform +, clavate +, oblong +  and linear +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.002 cm0.02 mm <br />2.0e-5 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Descurainia pinnata var. glabra +
Descurainia pinnata subsp. glabra +
Descurainia pinnata +
subspecies +
coiled +, 1-7-veined +  and veined +
pubescent +  and glabrous +
anastomosing +
eglandular +  and glandular +
not +, canescent +, glabrous +  and pubescent +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
divaricate +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
descending +  and horizontal +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +