DESCRIPTIVE MANUAL 



105 



Fig. 59-B. Plant hair or triohome of (.Chenopodium botrys). 

 bj glandular trichomes from calyx. 

 (Drawn by Charlotte M. King.) 



a. from stem : 



Maple-leaved Goosefoot {Chenopodmm hylri&um L.). 



Description. — ^A bright green annual from 2-4 ft. high; widely 

 branching, with an unpleasant odor like stramonitun ; leaves thin, 

 triangular, heart-shaped sinuate-toothed; flowers inconspicuous, in 

 loose, racemose panicles; calyx covering the fruit; seed firmly at- 

 tached to the pericarp. 



Distribution. — Frequently found in woods and waste places ; ex- 

 tending from Kansas to Manitoba, Wisconsin and Minnesota and 

 southward ; common in Story, Boone, Marshall, Clinton, Polk, "Wood- 

 bury, Pottawattamie, Dubuque, Allamakee and Cerro Gordo coun- 

 ties. 



Extermination. — This annual weed can be killed by giving clean 

 cultivation. Sometimes distributed with clover seed, but less fre- 

 quently than the other species. Sow clean clover seed. 



