Rudbeckia species

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Scientific Name Rudbeckia laciniata var. ampla USDA PLANTS Symbol
RULAA
Common Name Golden Glow, Green-head Coneflower, Cut-leaf Coneflower ITIS Taxonomic Serial No.
530173
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Foothills and montane; moist areas, streamsides, meadows, aspen groves, roadsides.
Plant: Erect perennial up to 6 feet tall, branched at base, leafy stems.
Leaves: Large basal and stem leaves, entire (undivided) or divided into several segments, stem leaves are alternate.
Inflorescence: Very large composite flower heads more than 2 inches across, in branching clusters, 8 to 12 drooping ray flowers (petals); many yellow or yellow-green disk florets on central cone.
References: Various.
Colorado Status
Native
Scientific Name Rudbeckia occidentalis USDA PLANTS Symbol
RUOC2
Common Name Western Coneflower ITIS Taxonomic Serial No.
36782
Family Asteraceae (Sunflower) SEINet Reference
Click Here
Description Life zones and habitat: Foothills and montane. Moist, open or lightly wooded sites.
Plant: Perennial 2 to 5 feet tall with thick, rigid leafy stems.
Leaves: Large ovate leaves, up to 12 inches long, with pointed tips and prominent central vein and somewhat toothed edges.
Inflorescence: One or more large dark brown cone-shaped flower heads up to to 2 inches long, each with 200-500 small disk florets, yellow but turning purplish brown blooming from bottom to top; no ray florets; leafy bracts below.
References: Descr. adapted from www.americansouthwest.net, and "Wildflowers of the Rocky Mountains" by Carl Schreier.
Colorado Status
Native

© Tom Lebsack 2017