Descurainia pinnata subsp. pinnata

unknown
Synonyms: Cardamine multifida PurshDescurainia canescens (Nuttall) PrantlDescurainia multifida (Pursh) O. E. SchulzDescurainia multifoliata CorySisymbrium canescens NuttallSisymbrium canescens var. californicum Torrey & A. GraySisymbrium incisum var. californicum (Torrey & A. Gray) BlankinshipSisymbrium multifidum (Torrey & A. Gray) RydbergSisymbrium multifidum subsp. canescens unknownSophia californica RydbergSophia millefolia unknownSophia myriophylla unknown
Treatment appears in FNA Volume 7. Treatment on page 527.
Revision as of 23:20, 26 July 2019 by FNA>Volume Importer
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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.
Barbara E. Goodson +  and Ihsan A. Al-Shehbaz +
unknown +
Erysimum pinnatum +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +  and Tex. +
0-600 m +
Roadsides, waste grounds, disturbed sites, railroad tracks and embankments, grassy areas, sandy knolls, stream banks, abandoned fields +
Flowering Feb–Apr. +
Mem. Torrey Bot. Club +
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 +