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The Forest Service National Center for Reforestation, Nurseries, and Genetic Resources (RNGR) is a leading source of technical information for nurseries and land managers regarding production and planting of trees and other native plants for reforestation, restoration, and conservation.

 
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 2024/07/01). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.