RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Skip to content. | Skip to navigation

Home → Native Plant Network
 
NPN Protocol Details Image

Pyrrocoma (racemosa)

Amy Bartow
Seed and Plant Production Manager
USDA NRCS - Corvallis Plant Materials Center
3415 NE Granger Ave
Corvallis, Oregon 97330
(541) 757-4812 ext 103
(541) 757-4733 (fax)
amy.bartow@or.usda.gov
http://plant-materials.nrcs.usda.gov/orpmc
Family Scientific Name: Asteraceae
Family Common Name: Sunflower Family
Scientific Name: Pyrrocoma racemosa Torrey & A. Gray
Common Name: Clustered goldenweed
Species Code: PYRA
Ecotype: seeds were collected from Lane Co., Oregon near Eugene
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0
Target Specifications: containerized plants to be used from small-scale seed increase.
Propagule Collection: Pappas and seeds are collected when it "puffs" out.
Propagule Processing: Seeds brushed in a lab-sized Westrup brush machine (using a sandpaper drum), this removed pappas and some hairs from the seed, it was then cleaned using a small air screen machine.
Growing Area Preparation/
Annual Practices for Perennial Crops:		 Seeds were sown into cone-tainers filled with Sunshine #1 (a soil-less, peat-based media) amended with micro-nutrients (MIcromax) and a slow-release fertilizer (Osmocote 14-14-14). Flats of cone-tainers were placed in cooler for 120 days cold-moist stratification. Some seeds germinated whlie in the cooler, however, most of the germination occured after the seeds were moved to a greenhouse set at moderate temperatures (70degree days and 50 degree nights).
Other Comments: Plants grew slowly the first year and none of them flowered. Some flowered the second year. Full flowering occured on the third growing season.

Citation:

Bartow, Amy. 2007. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Pyrrocoma racemosa Torrey & A. Gray seeds USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/20). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.