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Rorippa sylvestris

Rorippa sylvestris in field

Rorippa sylvestris stem and leaf base

Rorippa sylvestris distal leaf (adaxial view)

Rorippa sylvestris leaf apex

Rorippa sylvestris inflorescence a raceme.

Rorippa sylvestris flower showing 4 sepals, 4 petals, 6 stamens, 1 style

Rorippa sylvestris flower (lateral view)

Rorippa sylvestris flower showing 2 shorter stamens, 2 of the 4 longer stamens, 1 style

Rorippa sylvestris stigma

Roripppa sylvestris stigma (apical view)

Rorippa sylvestris young fruit

Rorippa sylvestris cross-section of young fruit

Diagnostic features

Principal leaf blades pinnately divided to midvein, upper sessile leaves without auricles; petals present, at least 4 mm long; fruit stalked, pedicels 4 or mm long; silique 10-15 mm long; seeds reddish brown, obovoid. 

 

Family

Brassicaceae Burnett, alternatively Crucifera Jussieu (Mustard Family)

References

Gleason, Henry A. 1952. The New Britton and Brown Illustrated Flora of the Northeastern United States

       and Adjacent Canada. vol. 2. The New York Botanical Garden. 238. 

Godfrey and Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States-Dicotyledons.

       University of Georgia Press. 171.

 

Judd et al.. 2002. Plant Systematics – A Phylogenetic Approach. Second edition. Sinauer Associates, Inc.

       Sunderland, Mass.

 

Thomas R. D. & C. M. Allen. 1996. Atlas of the Vascular Flora of Louisiana- Volume II: Dicotyledons Acanthaceae - Euphorbiaceae. Louisiana Department of

       Wildlife and Fisheries, Natural Heritage Program.

 

USDA, NRCS. 2004. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

seeds

Seeds reddish-brown, finely pebbeled, obovoid, 0.5-0.7 mm long.

Synonyms

Radicula sylvestris (L.) Druce

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