Iris pseudacorus

Iris pseudacorus

Pale Yellow Iris, Yellow Flag

Melilotus officinalis

Melilotus officinalis

Yellow Sweetclover

Baptisia australis

Baptisia australis

Blue False Indigo, Blue Wild Indigo, Horse Fly Weed, Indigo Weed, Rattlebush, Rattleweed

Veratrum album

Veratrum album

White False Hellebore, White Hellebore

Nigella sativa

Nigella sativa

Black Cumin

Corydalis lutea

Corydalis lutea

Golden Bleeding Heart, Yellow Corydalis, Yellow Fumatory, Yellow Rock Fumewort

Sarracenia flava

Sarracenia flava

Yellow Pitcher Plant

Tragopogon dubius

Tragopogon dubius

Western Goatsbeard, Yellow Salsify

Cimicifuga racemosa

Cimicifuga racemosa

Black Bugbane, Black Cohosh, Black Snakeroot, Fairy Candle

Rudbeckia hirta

Rudbeckia hirta

Black Eyed Susan, Blackeyed Susan, Brown-eyed Susan, Wild Black-eyed Susan

Echinacea paradoxa

Echinacea paradoxa

Bush's Coneflower, Yellow Cone Flower, Yellow Coneflower

Gentiana lutea

Gentiana lutea

Yellow Gentian

Artemisia dracunculus

Artemisia dracunculus

Dragon Herb, Tarragon

Astilbe chinensis

Astilbe chinensis

Chinese Astilbe, Tall False-Buck's-Beard

Helenium autumnale

Helenium autumnale

Bitterweed, Common Sneezeweed, Fall Sneezeweed, False Sunflower, Helen's Flower, Large-flowered Sneezeweed, Sneezeweed

Verbena hastata

Verbena hastata

American Vervain, Blue Vervain, False Vervain, Indian Hyssop, Swamp Verbena, Swamp Vervain, Vervain, Wild Hyssop

Helleborus niger

Helleborus niger

Black Hellebore, Christmas Rose

Argemone mexicana

Argemone mexicana

Mexican Pricklypoppy

Iris bloudowii

Iris bloudowii

Yellow Mongolian Iris

Linaria vulgaris

Linaria vulgaris

Butter And Eggs, Common Toadflax, Yellow Toadflax

Mimulus guttatus

Mimulus guttatus

Seep Monkeyflower, Yellow Monkeyflower

Oenothera biennis

Oenothera biennis

Common Evening Primrose, Evening Primrose

Ratibida pinnata

Ratibida pinnata

Gray-head Coneflower, Gray-head Mexican-hat, Prairie Coneflower, Yellow Coneflower

Rumex crispus

Rumex crispus

Curly Dock

Scabiosa ochroleuca

Scabiosa ochroleuca

Cream Pincushions, Cream Scabious

Telekia speciosa

Telekia speciosa

Giant Ox Eye, Giant Oxeye, Heartleaf Oxeye, Yellow Oxeye

Trifolium campestre

Trifolium campestre

Field Clover, Hop Trefoil

Actaea cimicifuga

Actaea cimicifuga

Black Snake Root, Bugbane, Foetid Bugbane

Actaea simplex

Cimicifuga simplex

Black Bugbane, Bugbane

Echinacea angustifolia

Echinacea angustifolia

Black Samson Echinacea, Narrow-leaved Coneflower

Rudbeckia fulgida

Rudbeckia fulgida

Orange Coneflower, Showy Coneflower