The leaves are very similar to those of Hairy Bittercress, but are usually a brighter green in colour, often they are missing - probably because they have been eaten by slugs. Waved bittercress, C. flexuosa, closely resembles hairy bittercress and is also variable in habit. It has hairy leaves and bunches of white or pink flowers. Hairy bittercress is variable in size and leaf shape. The whole plant remains very flat except for the mature seed pods which stand about 3 to 4 … To harvest hairy … A related introduced weed, New Zealand bittercress, C. corymbosa, has become troublesome in polytunnels. New Zealand bittercress is reported as new to the United States. Harvesting Hairy Bittercress. Tags: Cardamine hirsute, bittercress, Hairy Bittercress, . It is usually annual or biennial but occasionally perennial. This weed can complete its lifecycle in three to four weeks to disperse thousands of seeds, all of which can germinate to release their own seeds in quick succession. hairy bittercress from Wakari, Dunedin 9010, New Zealand on April 22, 2020 at 03:28 PM by John Barkla. Four species of bittercress were detected in the nursery industry of the United States, including New Zealand bittercress, hairy bittercress, flexuous bittercress, and little bittercress. ... Take iNaturalist NZ mobile with the iNaturalist mobile app: Help us … Bittercress may be introduced as seed, seedlings or as plants in … Leaves up to 130 mm long, deeply lobed; moderatey hairy to hairless, somewhat glossy. The nursery tracked the shipment of contaminated plants to a wholesale … Tiny white flowers appear on upright, wiry stems in early spring and continue to bloom until autumn. Cardamine hirsuta, commonly called hairy bittercress, is an annual or biennial member of the mustard family (Brassicaceae), and is edible as a bitter herb. Foraging for hairy bittercress can be as simple as walking out into your backyard. It is a common weed in moist areas and has been transported to many new regions by humans. Little is known about potential impacts in New Zealand, but in Britain it is a vigorous coloniser that grows in dense patches and suppresses other plants. In urban garden The taxon referred to here as Cardamine flexuosa With. While collecting specimens to determine what Cardamine species occur in the nursery trade, New Zealand bittercress was discovered in a container nursery in Wilkes County, North Carolina. Of the same family as cuckoo cress, Cardamine hirsuta is also commonly known as hairy bittercress and flick seed (because it flicks its seeds into the air). Left unchecked, hairy bittercress can quickly spread to infest the whole garden. 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