Descurainia pinnata subsp. pinnata

Synonyms: Cardamine multifida Pursh Descurainia canescens (Nuttall) Prantl Descurainia multifida (Pursh) O. E. Schulz Descurainia multifoliata Cory Sisymbrium canescens Nuttall Sisymbrium canescens var. californicum Torrey & A. Gray Sisymbrium incisum var. californicum (Torrey & A. Gray) Blankinship Sisymbrium multifidum (Torrey & A. Gray) Rydberg Sisymbrium multifidum subsp. canescens Sophia californica Rydberg Sophia millefolia Sophia myriophylla
Treatment appears in FNA Volume 7. Treatment on page 527.

Plants usually glandular, rarely eglandular, usually not canescent. Stems unbranched basally, branched distally. Racemes: rachis sparsely to densely pubescent, often glandular. Fruiting pedicels divaricate to horizontal or descending, forming (60–) 70–90 (–110) º angle, 4–14 (–17) mm. Flowers: sepals rose (at least apically), 0.8–2 mm; petals 1–1.8 × 0.3–0.7 mm. 2n = 14, 28.


Phenology: Flowering Feb–Apr.
Habitat: Roadsides, waste grounds, disturbed sites, railroad tracks and embankments, grassy areas, sandy knolls, stream banks, abandoned fields
Elevation: 0-600 m

Distribution

V7 831-distribution-map.gif

Ala., Fla., Ga., La., Miss., N.C., S.C., Tex.

Discussion

R. C. Rollins (1993) indicated that subsp. pinnata grows in Oklahoma and Virginia. We have not seen material of it from those states, and it is likely that those records are based on plants of subsp. brachycarpa.

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.

1.4 cm14 mm <br />0.014 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 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 +
(Walter) Britton +
Erysimum pinnatum +
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 +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +  and Tex. +
0-600 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 />) +
Roadsides, waste grounds, disturbed sites, railroad tracks and embankments, grassy areas, sandy knolls, stream banks, abandoned fields +
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. +
trinucleate +  and 3(-11)-colpate +
Mem. Torrey Bot. Club +
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 /> (0.2 cm2 mm <br />0.002 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 />) +
Cardamine multifida +, Descurainia canescens +, Descurainia multifida +, Descurainia multifoliata +, Sisymbrium canescens +, Sisymbrium canescens var. californicum +, Sisymbrium incisum var. californicum +, Sisymbrium multifidum +, Sisymbrium multifidum subsp. canescens +, Sophia californica +, Sophia millefolia +  and Sophia myriophylla +
Descurainia pinnata subsp. pinnata +
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 +
1.4 cm14 mm <br />0.014 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
descending +  and horizontal +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +