perennial pepperweed
Lepidium latifolium L.


Lepidium latifolium is a perennial that can grow from 1-5 ft. (0.3-1.5 m) in height. In the late fall to early spring a rosette of leaves develops with 4-12 in. (10-30 cm) long and 1-2 in. (2.5-5 cm) wide, toothed leaves. Plants emerge from thick, minimally branched roots or semi-woody crowns. Individuals remain as a rosette for several weeks before the stem elongates.
Rosette leaves are long petiolate. Cauline (stem) leaves are alternate, 1-3 in. (2.5-7.6 cm) long and oblong.
Flowering occurs in the late spring to summer, when flat, dense clusters of flowers develop at the apex of the flowering stem. Individual flowers are 4-petaled and white.
The fruit is a round to oval, hairy capsule that is 0.06 in. (1.5 mm) in diameter. It contains a single seed.
Ecological Threat
Lepidium latifolium invades coastal wetlands, riverbanks, marshes, rangelands, and roadsides. It can form dense monocultures that can increase in size over time crowding out native species. This plant was accidentally introduced into the United States around 1936 as contaminant in seed. It is native to Eurasia.


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EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Dilleniidae
Order: Capparales
Family: Brassicaceae
Genus: Lepidium
Subject: Lepidium latifolium L.

Synonyms and Other Names

Other Common Names:
Virginia pepperweed, broadleaved pepperweed, tall whitetop, broadleaved peppergrass

Related Scientific Names:
Cardaria latifolia L. (Synonym)


Plants - Forbs/Herbs