Cardamine Genus bitter-cress; toothwort Brassicaceae


Cardamine hirsuta.Walter

Cardamine hirsuta flowers and fruit. Walter (Accessed 5/2014).

Cardamine Genus are herbs herbs, ours mostly rather small annuals, biennials or spring ephemerals, some colonial, mostly hairless. 

Leaves alternate, ours pinnate to three-parted. 

Cardamine hirsuta NRM. jpg

Cardamine hirsuta flower. NRM. jpg (Accessed 11/2017).

Flowers white (ours), petals and sepals 4 each, small, stamens, 6 or less, ovary inferior, linear, cylindrical. 

Cardamine hirsuta hairy bitter cress. Photo by Phil Bendle. T.E.R.R.A.I.N.

Cardamine hirsuta (hairy bitter cress) fruit and seeds. Photo by Phil Bendle. T.E.R.R.A.I.N. (Accessed 11/2017)



Fruit becoming dry, a linear capsule divided into two longitudinal compartments by a membranous partition, tipped by persistent style, fruit developing below old flower parts as inflorescence stalk elongates with buds and new flowers at tip; fruit capsule splitting open to release numerous seeds, one row on each side of the persistent central partition .