University of Missouri Extension

IPM1007, Revised November 2009

Practical Weed Science for the Field Scout: Corn and Soybean

Pineapple weed (Matricaria discoidea)

Winter annual broadleaf

Pineapple-weedPineapple-weed
Pineapple-weedA summer or winter annual with finely dissected leaves that emit a sweet "pineapple-like" odor when crushed. Individual leaves are arranged alternately along the stem and are from 1 to 5 cm in length. Each leaf is hairless and divided into many narrow segments, each 1 to 2 mm wide. Stems are smooth, hairless and branched. One or several flowers are produced at the ends of the stems on short flower stalks (peduncles). Individual flowers are cone shaped and 1/4 to 1/2 inch in diameter. Flowers are greenish yellow in color.
 

IPM1007, revised November 2009

Wild thing
 

IPM1007 Practical Weed Science for the Field Scout: Corn and Soybean | University of Missouri Extension

Order publications online at http://extension.missouri.edu/explore/shop/ or call toll-free 800-292-0969.

University of Missouri Extension - print indicia