Wisconsin State Herbarium
Vascular Plants
University of Wisconsin - Madison
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What's Blooming?
Some obviously blooming plants along roadsides of Wisconsin in May.
Colors
Common Name
Scientific Name
White
Bladder campion
Garlic mustard
American cow-parsnip
Lyre-leaved rockcress
May apple
Big white trillium
Silene latifolia subsp. alba
Alliaria petiolata
Heracleum lanatum
Arabis lyrata
Podophyllum peltatum
Trillium grandiflorum
Yellow
Cream wild indigo
Balsam ragwort
Old field cinquefoil
Yellow sweet clover
Field mustard
Puccoons
Golden alexanders
Early Buttercups
Baptisia bracteata var. glabrescens
Packera paupercula
Potentilla simplex
Melilotus officinalis
Brassica rapa
Lithospermum spp.
Zizia aurea
Ranunculus fascicularis
Blue
Spiderwort
Wild lupine
Jacob's-ladder
Tradescantia ohiensis
Lupinus perennis
Polemonium reptans L. var. reptans
Purple/Pink
Dames Rocket
Wild geranium
Downy phlox
Hesperis matronalis
Geranium maculatum
Phlox pilosa
Red/Orange
Wild columbine
Aquilegia canadensis
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