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Wildflowers of the Pacific Northwest Trees & Shrubs of the Pacific Northwest Weeds of the Pacific Northwest Eastern Washington and Oregon in Bloom Western Washington and Oregon in Bloom

Browse Plants by Type: 4 petals

Raphanus sativus
Raphanus sativus
Wild Radish
Mustard
Rorippa curvisiliqua
Rorippa curvisiliqua
Western Yellow Cress
Mustard
Rorippa palustris
Rorippa palustris
Marsh Yellowcress
Mustard
Sisymbrium altissimum
Sisymbrium altissimum
Tumble Mustard
Mustard
Sisymbrium linifolium
Sisymbrium linifolium
Plains Mustard
Mustard
Sisymbrium officinale
Sisymbrium officinale
Hedge Mustard
Mustard
Smelowskia americana
Smelowskia americana
Alpine Smelowskia
Mustard
Smelowskia ovalis
Smelowskia ovalis
Alpine False Candytuft
Mustard
Stanleya pinnata
Stanleya pinnata
Prince's Plume
Mustard
Streptanthus cordatus
Streptanthus cordatus
Heart-Leaved Jewel Flower
Mustard
Taraxia subacaulis
Taraxia subacaulis
Northern Suncup
Evening Primrose
Taraxia tanacetifolia
Taraxia tanacetifolia
Tansy-Leaved Evening Primrose
Evening Primrose
Thelypodium laciniatum
Thelypodium laciniatum
Thick-Leaf Thelypody
Mustard
Thlaspi arvense
Thlaspi arvense
Field Pennycress
Mustard
Thysanocarpus curvipes
Thysanocarpus curvipes
Fringe Pod
Mustard
Zeltnera muehlenbergii
Zeltnera muehlenbergii
Monterey Centaury
Gentian