Nigel Cattlin / Hairy bittercress (Cardamine hirsuta) leaf rosette with pinnate leaves, growing as garden weed. Berkshire, England, UK. May.

Nigel Cattlin / Hairy bittercress (Cardamine hirsuta) growing as garden weed. Berkshire, England, UK. May.

Nick Upton / Hairy Bitter Cress (Cardamine hirsuta) clump flowering in chalk grassland meadow, Wiltshire, UK, April.

Nigel Cattlin / Hairy bittercress (Cardamine hirsuta) weed, beginning to flower in a garden flowerbed, Berkshire, England, UK. February.

Nigel Cattlin / Hairy bittercress (Cardamine hirsuta) young plant rosette on soil, Devon, England, UK, April.

Nigel Cattlin / Young flowering plant of hairy bittercress (Cardamine hirsuta) annual arable garden weed

Nigel Cattlin / Young plants of hairy bittercress (Cardamine hirsuta) a common garden weed on bare soil, Devon, England, UK, April