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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

Erigeron (divergens)

Jim Barner
Seed Extractory Manager
USDA FS - R6 Bend Seed Extractory
63095 Deschutes Market Rd.
Bend, Oregon 97701
541-383-5481
541-383-5498 (fax)
jbarner@fs.fed.us
http://fsweb-ochdes.r6.fs.fed.us/seedextractory/ex
Family Scientific Name: Asteraceae
Family Common Name: Aster family
Scientific Name: Erigeron divergens Torr. & A. Gray
Common Name: Spreading fleabane
Species Code: ERDI4
Ecotype: BLM, Seeds of Success: USFS, Tonto National Forest, Forest road 1681, 0.5 miles from junction with Forest road 201, Maricopa County, Arizona: 4700 ft. elevation
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0 Weeks
Propagule Collection: Very small lot, 0.035 pounds, hand collected into paper envelope.
Propagule Processing: METHOD OF CLEANING: Seed lot is first processed using a Hoffman Hand Deawner/Debearder to remove seed from flower. Laboratory Test Sieve, mesh size 30 is used next to remove stems and non seed material. Seed is then air-screened, to remove remaining nonviable seed and inert material, using an office Clipper, top screen: 40 x 40 wire and a bottom screen: blank, low speed, and low air. Number of Seeds per Pound: 11,340,000, Purity: 98%, X-Ray 100 Seeds: 90% Filled, TZ: 76% (Oregon State University Seed Laboratory Analysis)
Harvesting, Storage and Shipping: Storage: Cold Storage, 33-38 Degrees Fahrenheit
Other Comments: Very small seeds and small seed lots present a cleaning and testing challenge. Different types of equipment, designed for smaller lots, are used.

Citation:

Barner, Jim. 2009. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Erigeron divergens Torr. & A. Gray seeds USDA FS - R6 Bend Seed Extractory Bend, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/03). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.