Family: Apiaceae
yellow-pimpernel
[Smyrnium integerrimum L.]
Stephen L. Solheim
Stephen L. Solheim
University of Wisconsin - Madison (WIS-VP)
Etymology: Taenidia: Greek tainidion for "a small band" referring to the ribs of the seeds
Plants: erect, perennial, 16"-32" tall, smooth, branched forb with a celery odor; tuberous-thickened roots
Leaves: smooth edged, long-stalked, lower leaves usually 3-times divided, upper leaves with clasping stalks encircling the stem and 1-2 times divided
Flowers: yellow, 5-parted; inflorescence a terminal, loose, open, compound umbel with 7-16 umbellets on spreading stalks (the outer longer), female flowers at the outer edge of the umbellets; blooms May-June
Fruits: dry, splitting into 2 seeds, - fruit:
seed:
Habitat: dry to moderate moisture; woods, open rocky slopes
Conservation Status: Native
Plants: erect, perennial, 16"-32" tall, smooth, branched forb with a celery odor; tuberous-thickened roots
Leaves: smooth edged, long-stalked, lower leaves usually 3-times divided, upper leaves with clasping stalks encircling the stem and 1-2 times divided
Flowers: yellow, 5-parted; inflorescence a terminal, loose, open, compound umbel with 7-16 umbellets on spreading stalks (the outer longer), female flowers at the outer edge of the umbellets; blooms May-June
Fruits: dry, splitting into 2 seeds, - fruit:
seed:Habitat: dry to moderate moisture; woods, open rocky slopes
Conservation Status: Native
Floristic Rating: Coefficient of Conservatism = 7 Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key
Stephen L. Solheim
Christopher Noll
Robert Bierman
Merel R. Black
Derek Anderson
Christopher Noll
