Family: Brassicaceae
garden yellow-rocket, winter-cress, yellow-rocket
[Barbarea arcuata (Opiz ex J.Presl & C.Presl) Rchb., more...]
Josh Sulman
Matthew L. Wagner
University of Wisconsin - Madison (WIS-VP)
Etymology: Barbarea: named after St. Barbara and once generally known as her herb, or the Herba Sanctae Barbarae
Plants: erect, biennial/perennial, 8"-32" tall forb, dark green, branched toward the top
Leaves: pinnately-lobed to deeply-toothed, clasping; lower leaves with a large, rounded end lobe and 1-4 pairs of smaller side lobes; stems leaves getting smaller toward the top and becoming merely oval
Flowers: yellow, 4-parted, 1/2" wide; inflorescence a crowded cluster (raceme) of stalked flowers; blooms April-June
Fruits: long, thin pod roundish in cross-section; seeds in 1 row;
Habitat: moist; fields, disturbed sites, gardens
Hazardous: Careful, this plant is hazardous!
Conservation Status: Introduced - naturalized
Plants: erect, biennial/perennial, 8"-32" tall forb, dark green, branched toward the top
Leaves: pinnately-lobed to deeply-toothed, clasping; lower leaves with a large, rounded end lobe and 1-4 pairs of smaller side lobes; stems leaves getting smaller toward the top and becoming merely oval
Flowers: yellow, 4-parted, 1/2" wide; inflorescence a crowded cluster (raceme) of stalked flowers; blooms April-June
Fruits: long, thin pod roundish in cross-section; seeds in 1 row;
Habitat: moist; fields, disturbed sites, gardens
Hazardous: Careful, this plant is hazardous!
Conservation Status: Introduced - naturalized
Along roadsides and railroads, in fields, lawns, thickets, dumps, ditches, abandoned quarries, farmyards, waste areas, vacant lots, gardens, gravel pits; also invading degraded prairies, riverbanks, lakeshores, sandbars, marshy borders and low areas, forest borders, swampy woods and floodplain forests, wooded ravines.
This is our most common species, often forming extensive stands along roads. Introduced from Europe and first collected in 1879. The mature fruits of B. vulgaris are usually not appressed to the rachis whereas those of B. orthoceras and B. stricta are sometimes appressed and erect to erect-ascending.
This is our most common species, often forming extensive stands along roads. Introduced from Europe and first collected in 1879. The mature fruits of B. vulgaris are usually not appressed to the rachis whereas those of B. orthoceras and B. stricta are sometimes appressed and erect to erect-ascending.
Flora of North America: Flora of North America Floristic Rating: Wetland Indicator = FAC 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. USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Matthew L. Wagner
Merel R. Black
Paul Drobot
Robert W. Freckmann
Merel R. Black
Josh Sulman
Paul Drobot
Merel R. Black
Matthew L. Wagner
Paul Drobot
Paul Drobot
Stephen L. Solheim
Josh Sulman
Paul Drobot
Botanical Illustration
Botanical Illustration
