Marijuana Legalization silhouette 9 months 6 Marijuana Leaf Silhouette Thumbs Up silhouette about 1 year 0 Grass leaves silhouette over 1 year 0 Grass and insects silhouette over 1 year 0 Dandelion silhouette over 1 year 10 Reed silhouette over 1 year 3 Grass silhouette over 1 year 3 Grass silhouette about 1 year 1 Grass silhouette over 1 year 7 Grass silhouette over 1 year 1