Tiny white flowers appear on upright, wiry stems in early spring and continue to bloom until autumn. It is usually annual or biennial but occasionally perennial. Hairy bittercress is variable in size and leaf shape. 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. 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. Perennial herb, a single rosette or with off-sets (short lateral branches). Lesser knotweed spreads readily from rhizome (root) … 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). Tags: Cardamine hirsute, bittercress, Hairy Bittercress, . To harvest hairy … Bittercress may be introduced as seed, seedlings or as plants in … New Zealand bittercress is reported as new to the United States. New Zealand Bittercress. hairy bittercress from Wakari, Dunedin 9010, New Zealand on April 22, 2020 at 03:28 PM by John Barkla. Bitter cress , land cress , lamb’s cress , flick weed This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 New Zealand License . Harvesting Hairy Bittercress. 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. It is a common weed in moist areas and has been transported to many new regions by humans. Inflorescence is a raceme, sometimes branched, each raceme 6–12-flowered; flowering stems to 400 mm or more tall. It has hairy leaves and bunches of white or pink flowers. Foraging for hairy bittercress can be as simple as walking out into your backyard. Lesser knotweed is a perennial herb that can grow to one metre tall. ... Take iNaturalist NZ mobile with the iNaturalist mobile app: Help us … Cardamine hirsuta, commonly called hairy bittercress, is an annual or biennial member of the mustard family (Brassicaceae), and is edible as a bitter herb. The taxon referred to here as Cardamine flexuosa With. Hairy bittercress is a hardy, frost-tolerant plant that remains green throughout the winter in most climates. 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. In urban garden The whole plant remains very flat except for the mature seed pods which stand about 3 to 4 … A related introduced weed, New Zealand bittercress, C. corymbosa, has become troublesome in polytunnels. Waved bittercress, C. flexuosa, closely resembles hairy bittercress and is also variable in habit. 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