May. 21, 2021
field madder, Sherardia arvensis
Field madder is another one of our little Eurasian immigrants. It's weedy in most open areas, here and around the world. The roots of field madder yield a poor quality red dye. Field madder has been reported from every state except AK, CO, MN, ND, NE, NM, SD, UT, and VT, and from BC, NS, ON, and QC. Bartow Co GA, 1/29/13. Madder family, Rubiaceae.