Rudbeckia maxima
great coneflower, giant coneflower, giant brown-eyed susan
Family
Asteraceae
Leaf Arrangement
alternate
Leaf Attachment
sessile, clasping
Leaf Margin
entire, denticulate, repand, undulate
Leaf Type
simple
Leaf Shape
oblong, ovate
Growth Form
forb
Flower Color
yellow
Flower Petals
many
Flower Month
May - July
Height (meters)
1.0 - 3.0
Milky Sap
Yes
Armed/Unarmed
Unarmed
Origin
native
Lifespan
perennial
Wetland Class
FAC
Field Characters
Achene not with 4 nearly equal facets. Leaf blades entire. Leaves glaucous, blades ovate to broadly ovate or oblong, flower stalk 1-3 m tall.
Habitat
Moist open places.