Compared to the commoner diplotaxis muralis, diplotaxis tenuifolia has narrower, more widely-separated leaf segments, taller, more upright stems, and fruits with a gap between the pod and the sepal scar. It is also hairless rather than sparsely hairy.
Common name:
Perennial wall-rocket
Family:
Scientific name:
Diplotaxis tenuifolia
Main flower color:
Range:
England, Wales and southern Scotland, mainly in coastal regions
Height:
Up to 80 cm
Habitat:
Waste ground, rough grassland
Flowers:
Up to 30 mm in diameter - four greenish-yellow sepals and four lemon-yellow petals, faintly veined. Attached by hairless pedicels
Fruit:
Narrow green pods, cylindrical in cross-section, with a short gap between the base of the pod and the residual sepal disc
Leaves:
Hairless, fleshy, pinnatifid; divided into narrow, well-separated lobes. Upper stem leaves have only small lobes
Season:
March to September
Rarity:
★★★★★
