Other names: Teaweed, prickly fanpetals
Life cycle: Summer annual
Found in: Cropland, pastures, hay fields, landscapes and gardens.
General description: Erect spiny plant with toothed leaves and yellow flowers that grows up to 20" high.
Seedlings: Cotyledons are heart-shaped with an indentation at the tip. Hypocotyls are covered
with short hairs.
True leaves: Alternate, up to 2" long, hairy and oval-shaped with toothed edges. Leaves have small spines at the base near the petiole.
Flowers and fruit: Flowers are yellow, small and bloom singly or in clusters on stalks that sprout from the area between the stem and leaf petioles.
Special note: Prickly sida is one of the 10 most troublesome weeds for soybeans in the South.