Yellow Apr – Jun
- DANDELION
- DOWNY YELLOW VIOLET
- CELERY-LEAVED CROWFOOT
- SMALL-FLOWERED CROWFOOT
- SLENDER FUMEWORT
- INDIA STRAWBERRY
- HOARY PUCCOON
- FRINGED PUCCOON
- DOWNY PAINTBRUSH
- GOLDEN ALEXANDERS
- PRAIRIE RAGWORT
- PLAINS WILD INDIGO
- LEAFY SPURGE
- YELLOW SWEET CLOVER
- TANSY MUSTARD
- TALL HEDGE MUSTARD
- CUT-LEAF EVENING PRIMROSE
- BLACK MEDIC
- YELLOW WOOD SORREL
- COMMON SOW-THISTLE
- SPINY SOW THISTLE
- PINEAPPLE WEED
- GOAT’S BEARD
- YELLOW LADY’S SLIPPER
- BEARDED IRIS
- TUFTED LOOSESTRIFE
- BLACK-EYED SUSAN
- FINGER COREOPSIS
- PRAIRIE CONEFLOWER
- COMMON ST. JOHN’S-WORT
- GREATER ST. JOHN’S-WORT
- BIRD’S-FOOT TREFOIL
- NORWEGIAN CINQUEFOIL
- BUSHY CINQUEFOIL
- WILD PARSNIP
- WORMSEED WALLFLOWER
- COMMON GROUND CHERRY
- FRINGED LOOSESTRIFE
- COMMON EVENING PRIMROSE
- PALE JEWELWEED
- WILD LETTUCE
- BUTTER-AND-EGGS
- DILL
- TOMATO