Rudbeckia
Top View
- Purple Coneflower: Echinacea Purpurea
- Rudbeckia Fulgida
- Ornamental Plants with Summer Bloom and Fruit in the Virginia Native Plant Garden
- Rudbeckia Laciniata (Green-Headed Coneflower) Botanical Bytes by Bruner by Gregory Bruner
- Rudbeckia Hirta1
- Bulb Preclearance Program Identification Manual
- Towards a Revision of the Rudbeckia Fulgida Complex (Asteraceae), with Description of a New Species from the Blacklands of Southern USA
- 'Prairie Sun' Black-Eyed Susan, Rudbeckia Hirta
- Plants That Attract Hummingbirds
- "Secondary Metabolites: Attracting Pollinators". In: Encyclopedia of Life Science
- Conservation Assessment for Prairie Parsley (Polytaenia Nuttallii)
- March Dye Plant of the Month: Rudbeckia, Black-Eyed Susan (Rudbeckia Hirta) by Janet Bare
- Alien and Invasive Plants in Carei Plain Natural Protected Area, Western Romania: Impact on Natural Habitats and Conservation Implications
- Ornamental Garden Plants of the Guianas, Part 4
- Attracting Butterflies & Hummingbirds
- Towards a Revision of the Rudbeckia Fulgida Complex (Asteraceae), with Description of a New Species from the Blacklands of Southern USA
- Coneflowers, Black-Eyed Susans Robert Anderson, Extension Floriculture Specialist
- Rudbeckia 'Cappuccino'