London-rocket
Scientific name: Sisymbrium irio L.
Diagnostic features Annual. Stems well branched, to 60cm, erect to ascending. Lower leaves variously lobed but some deeply so. Fruits 2-6cm, patent to ± erect.
Chromosome number: (2n=14, 28, 42, 56).
Habitat Introduced-naturalized; walls, roadsides and waste places.
Distribution More or less naturalized in a few places in Britain and Ireland, a more frequent casual, especially wool-alien; Europe.
This species is keyed out on Page 2643 in the Text Key. |