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Protocol Information

Carol and Jerry Baskin
University of Kentucky
University of Kentucky
Lexington, Kentucky 40506-0225

Family Scientific Name: Asteraceae
Family Common Name: Sunflower family
Scientific Name: Rudbeckia occidentalis Nutt.
Common Name: Black head coneflower
Species Code: RUDOCC
General Distribution: R. occidentalis is found in streambanks and woods from the Great Plains to east of the Cascade mountains.
Propagation Goal: Plants
Propagation Method: Seed
Product Type: Container (plug)
Propagule Processing: Seeds are non dormant.
Pre-Planting Treatments: Germination occurs at 30D/15N C alternating temperature cycle.
References: McDonough, W. T. (1969). Effective treatments for the induction of germination in mountain rangeland species. Northw. Sci. 43, 18-22.Florez, A. and McDonough, W. T. (1974). Seed germination, and growth and development of Rudbeckia occidentalis Nutt. (western coneflower) on Aspen Ridge in Utah. Amer. Midl. Nat. 91, 160-169.
Table 10.36 In: Baskin, C.J. and Baskin, J.M. Seeds: Ecology, Biogeography and Evolution in Dormancy and Germination, Academic Press, 1998. Chapter 10: A Geographical Perspective on Germination Ecology: Temperate and Arctic Zones, pages 331 to 458.

Baskin, Carol C.; Baskin, Jerry M. 2002. Propagation protocol for production of container Rudbeckia occidentalis Nutt. plants; University of Kentucky, Lexington, Kentucky. In: Native Plant Network. URL: http://www.nativeplantnetwork.org (accessed 31 August 2015). Moscow (ID): University of Idaho, College of Natural Resources, Forest Research Nursery.