Virginia Pepperweed
Scientific Name: Lepidium virginicum L.
Family: Brassicaceae
MORPHOLOGY
Growth and Size: An annual herbaceous plant with a slender taproot, ranging from 20 to 50 cm in height.
Stems: Erect stems, reddish at the base, branching and hairy with reflexed hairs on the upper part.
Leaves: Basal leaves in rosettes, up to 8 cm long, deeply lobed and lyrate, with the terminal lobe more developed than the lateral ones; reduced cauline leaves, alternate, sessile, lanceolate to oblong-lanceolate, ciliate, and generally with 3 to 7 apical teeth.
Flowers: The flowers, clustered in cylindrical terminal racemes, have 4 elliptic sepals, about 1 mm long, glabrous or with few hairs; 4 white obovate petals (sometimes absent), exceeding the sepals. It blooms from April to August.
Fruits and Seeds: The fruits with a 4-5 mm peduncle are bilocular silicles, suborbicular, 2-4 mm in size, without or with a very short marginal wing towards the apex and an apical notch with a non-protruding style; each locule contains a seed with winged margins.
DISTRIBUTION AND HABITAT
An invasive alien species present throughout Italy except Molise, Basilicata, and Calabria, in ruderal and semi-ruderal environments, road edges, along rivers, along railways, fallow lands, cultivated fields, and trampled places, from 0 to 800 m.
USE
The herb has anthelmintic, diuretic, antitussive, and cardiotonic properties. The leaves are a rich source of vitamin C. Before taking any plant-based product (medicinal or non-medicinal) for therapeutic or similar purposes, it is always advisable to consult a doctor. Young leaves can be used in salads both cooked and raw. Mature seeds have a pungent taste and can be used as a substitute for pepper.
INTERESTING FACTS
The Monominee Indians used the juice or a lotion of Lepidium virginicum to treat contact dermatitis caused by poison ivy.
Photo: Licensed for free use by Saxifraga and Rutger Barendse, Ed Stikvoort.
