Argentine Pepperwort - Lepidium bonariense
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Species Description
Very rare casual; mainly as a birdseed alien.
Stace 4:
Lepidium bonariense L. - Argentine Pepperwort.
Erect annual or biennial to 60cm; stem-leaves not clasping stem, 2-pinnate to deeply pinnately lobed; fruit 2-3.5mm, narrowly winged apically with shallow notch an shorter style; (2n=64). Neophyte-naturalised; infrequent casual on tips and in fields, mainly from wool and birdseed; very scattered in Britain, mostly South England, but now very rare; South America.