Rudbeckia laciniata, Cutleaf Coneflower
Scientific Name: Rudbeckia laciniata
Common Name: Cutleaf Coneflower
Also Called: Cutleaf, Goldenglow, Green-headed Coneflower, Tall Coneflower and Thimbleweed
Family: Asteraceae, Sunflower Family
Synonyms: (Rudbeckia laciniata var. gaspereauensis, Rudbeckia laciniata var. hortensis)
Duration: Perennial, rhizome.
Size: Up to 9 feet or more.
Growth Form: Forb/herb, subshrub; stems erect; colonial; mostly glabrous, branching along upper stems; sunflower like plants.
Leaves: Dark green; alternate; attractive, deeply pinnately divided into several lobes; long petioles; leaf margins smooth or coarsely dentate.
Flower Color: Yellow; flower heads large, 2 inches or more wide, heads in branching clusters of 2 or many; drooping, ray flowers yellow, 8 to 12; disk flowers yellow or yellowish green or brownish, numerous, on a central cone-like involucre; fruit an achene.
Flowering Season: July to September.
Elevation: 5,000 to 8,500 feet.
Habitat Preferences: Higher elevations, sunny or light shade areas, rich moist soils, wetlands and along mountain streams in Arizona.
Recorded Range: Throughout the eastern two thirds of North America. In northern, southern and eastern Arizona at higher elevations.
North America & US County Distribution Map for Rudbeckia laciniata, Cutleaf Coneflower.
U.S. Weed Information: No data available.
Invasive/Noxious Weed Information: No data available.
Wetland Indicator: Rudbeckia laciniata is on the USDA 2012 National Wetland Plant List.
Threatened/Endangered Information:The State of Rhode Island has listed Rudbeckia laciniata, Green-headed Coneflower as a Threatened species.
Comments: Cutleaf Coneflower is not a desert species but responds well to summer rains in Arizona. It is common throughout the United States and Canada and readily cultivated in home landscaping and by state highway departments for roadside restoration and beautification projects.
It is listed as threatened species by one state and classified as a weed by another authority. May be confused with Upright Prairie Coneflower, Ratibida columnifera.
Cutleaf Coneflower is considered poisonous to livestock, a factor which often leads to "weed" status. It readily attracts birds and many kinds of insects including bees, butterflies and moths.
Rudbeckia laciniata has been used for food and traded by North American indigenous peoples.
Cherokee Food, Dried Food. Leaves and stems tied together and hung up to dry or sun dried and stored for future use.
Cherokee Food, Winter Use Food. Leaves and stems preserved by blanching, then boiling in the 'can' with or without salt.
Chippewa Drug, Burn Dressing. Compound poultice of blossoms applied to burns.
Chippewa Drug, Gastrointestinal Aid. Compound infusion of root taken for indigestion.
Chippewa Drug, Veterinary Aid. Compound infusion of root applied to chest and legs of horse as a stimulant.
San Felipe Food, Vegetable. Young stems eaten like celery.
See ethno-botanical uses at Native American Ethnobotany, University of Michigan, Dearborn.