Incised fumewort (Corydalis incisa) is an East Asian member of the Fumariaceae family recently discovered growing wild on the floodplain of the Bronx River in Bronx and Westchester Counties, New York. The species is fast-growing, highly fertile and reproduces asexually by tubers and sexually by seed explosively ejected from the fruit. The seeds are then carried by floodwaters and possibly also by foraging insects and animals, attracted by the small oily structures (elaiasomes) attached to the seeds.
The Bronx River, New York City’s only fresh water river, flows twenty-four miles through Westchester and Bronx Counties. Incised fumewort currently occupies hundreds of acres along both banks of the River and is especially dense in the Bronx River Forest, just north of The New York Botanical Garden. Join NYBG botanist Daniel Atha for a tour of the Corydalis incisa population on the Bronx River. Presented by the Torrey Botanical Society