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Bransford, W.D. and Dolphia
Rudbeckia laciniata L.
Cutleaf coneflower, Green-head coneflower, Wild goldenglow
USDA Symbol: RULA3
USDA Native Status: L48 (N), CAN (N)
A sunflower-like perennial, green-head coneflower’s branched, leafy stalk grows 3-12 ft. tall. The stemmed flowers are at the apex of the stalk. Each flowers is 3-4 in. across, with cone-shaped, greenish-yellow centers and back-tilted golden rays. The center cones elongate and become brownish as the seeds ripen. Attractive leaves are pinnately dissected and emerge early in spring.
Blackeyed Susan (R. hirta), an eastern species introduced many places in the West, has a dark brown or brown-maroon hemispheric disk surrounded by orange-yellow, somewhat drooping rays. The lanceolate leaf blades sometimes have teeth, and there is no crown or ring of scales on the fruit.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf:
Fruit: Size Class:
Bloom InformationBloom Color: Yellow
Bloom Time: Jul , Aug , Sep , Oct
, WY Canada: BC
, QC Native Distribution:
Que. to n. FL,
w. to ID
& AZ Native Habitat:
Low, rich woods; wet fields; alluvial thickets
Growing ConditionsWater Use:
Low Light Requirement:
Sun , Part Shade , Shade Soil Moisture:
Moist Soil pH:
Acidic (pH<6.8) CaCO3 Tolerance:
Medium Soil Description:
Moist, slightly acid soil. Conditions Comments:
Because it spreads rampantly by underground stems, cut-leaf coneflower is only appropriate for large sites. May need staking in garden situations but otherwise very hardy. (Ontario Native
BenefitConspicuous Flowers: yes
PropagationDescription: Untreated seed.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Record Last Modified: 2014-03-27
Research By: TWC Staff