Artificial key to the weed seeds found in commercial seeds in Illinois and adjoining states . Plate IV I 1 MM m # <+ & # •f «. Plate V ROW 1. Amaranthus graecizans. Row 2. Amarantaus retroflexus. Row 3. Chenopo&ium album. ™ 4. Cuscuta arvensis. Row 5. Cirsium arvense. Row 6. Bromus secalinus. Plate VI Row 1. Braasica nigra. ..0 2. Brassica arvensis. to* 3. Dip-itaria san^uinalis. 4. Lithon-nerrnum arvense. Plate V • • • # Plate VI

---

Size: 2986px × 837px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, booksubjectwe