Raphanus raphanistrum wild radish; jointed charlock Brassicaceae RARA*; Bx, pb; Q, j; K, p;

Raphanus raphanistrum.Glen Mittelhauser.New England Wild Flower Society.gobotany.newenglandwild.org

Raphanus raphanistrum.Glen Mittelhauser.New England Wild Flower Society.gobotany.newenglandwild.org (Accessed 4/2014).

Raphanus raphanistrum is an annual herb, to 80 cm, from a taproot, stems sparsely bristly-hairy, much branched, plant often dull blue-green. 

Leaves alternate, lower leaves pinnately divided, to 20 cm long, widest near top, upper leaves reduced, sometimes entire. 

Flowers yellow, often turning white, often with purple veins, 4-parted, 3-4 cm wide on stalks to 1.5 cm; blooming April-Nov. 

Fruit dry capsules linear, to 4 x 0.6 cm, sometimes harshly-hairy, becoming constricted around the 2-10 seeds, tip beaked to 3 cm long, seeds 0.2-0.3 cm (Uva 1997). 

Wetland status: UPL. 

Frequency in NYC: Very infrequent. 

Origin: Eurasia. 

Habitat: Open soil, roadsides.