White Wall-rocket - Diplotaxis erucoides
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Species Description
Scattered and rare. First cultivated in Britain in 1736, and first recorded in the wild in 1859 (Surrey). Internationally ours is subsp. erucoides.
Stace 4:
Diplotaxis erucoides (L.) DC. - White Wall-rocket.
Rather sparsely hairy annual with branching leafy stems to 50cm; leaves variably (sometimes scarcely) lobed; petals 7-13mm; fruit 1-5cm, patent to erecto-patent on pedicel about 2/5-1/2 as long, with stalk between sepal scars and base of valves 0.3-1mm; (2n=14). Neophyte-casual; waste ground and by paths, formerly frequent, then rare, now occasional in South & Central Britain, East Lothian; South Europe.
Key:
- Petals white; fruit with beak 2-4(6)mm