Vascular Plants of North Carolina
Account for Virginia-cress - Planodes virginicum   (L.) GreeneOnly member of Planodes in NC.
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Section 6 » Family Brassicaceae
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Author(L.) Greene
DistributionPresent across most of the state, but absent from the lower Coastal Plain, at least in the eastern portions.

This is a Southern and Midwestern species, ranging from southern VA and KS, south to northern FL and central TX.
AbundanceInfrequent in the Piedmont, and western-central Coastal Plain. Rare to uncommon in the mountains, and absent near most of the coast.
HabitatThis is a ruderal species, but for some reason is not at all common or really numerous in the state. It grows in fields, roadsides, etc., though it has a preference for moist disturbed ground.
PhenologyBlooms from February to June, and fruits soon after flowering.
IdentificationThis is a small plant, very easily overlooked, and not overly well known to biologists. It is branched from the base, with branches ascending to decumbent, seldom more that 8" long or tall. The basal leaves are 2-3" long, highly pinnately segmented. The few stem leaves are also pinnately segmented. At the ends of branches are the racemes, some up to 4" long, of very small white flowers. Of most significance are siliques, each flat and narrow but up to 1" long, and fairly long for the short size of the plant. Thus, identify this plant by the basal rosette of highly pinnate leaves, and the narrow siliques on a relatively short stem.
Taxonomic CommentsThis species is quite different from just about any other species, and only one other species is included in Planodes. More recent references had it in Sibara, or also as Arabis virginica. Clearly, it is not similar to most other Arabis species.

Other Common Name(s)Virginia-cress, Sibara, Virginia Rockcress, Virginia Winged Rockcress
State RankS4
Global RankG5
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