Diplotaxis tenuifolia wall rocket Brassicaceae DITE*; Bx, pb (DeCandido 2001), sw; R (DeCandido 2001);

  

Diplotaxis tenuifolia

Diplotaxis tenuifolia.Luigi Rignanese.luirig.altervista.org. (Accessed 11/2014).

Diplotaxis tenuifolia is a perennial herb from a taproot, erect 20-50 cm tall, stems branched from base, leafy up to inflorescence. 

Leaves alternate, mostly basal, oblanceolate, toothed to pinnately divided, lobes narrow, toothed, waxy-pale, rather fleshy, unpleasant odor when crushed. 

Flowers yellow, 4-parted, petals widest near top, narrowed to base; blooming July-Oct. 

Fruit dry, linear capsules 2-parted, to 5 cm long on stalks to 3.5 cm; seeds in 2 rows on each side of the midline septum. 

Wetland status: UPL. 

Frequency in NYC: Very infrequent. 

Origin: Europe. 

Habitat: Open weedy sites, roadsides.