Hairy bittercress (Cardamine hirsuta). Photo courtesy Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Hairy bittercress (Cardamine hirsuta) is a weed you may see at this time of year, said Carol Ann Harlos in WNY Gardening Matters, produced by the Master Gardeners of Cornell Cooperative Extension in Erie County. This plant and other ephemeral spring weeds pop up when the earth warms, quickly bloom and produce seeds. When the seeds are ripe, they shoot out and wait until autumn to germinate…

