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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

Eriogonum (umbellatum)

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: Polygonaceae
Family Common Name: Buckwheat family
Scientific Name: Eriogonum umbellatum Torr.
Common Name: Sulphur-flower buckwheat
Species Code: ERUM
Ecotype: J. Herbert Stone Nursery, Central Point, Oregon: 1272 ft. elevation - grown for and collected by the Klamath National Forest, Oregon/California
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0 Weeks
Propagule Collection: Large lot, 294 pounds, grown and harvested at J. Herbert Stone Nursery, Central Point, Oregon.
Propagule Processing: METHOD OF CLEANING: Seed lot is first processed using a Westrup Model HA 400 brush machine, with 3 row brushes, with a #18 mantel, at a speed of 3, to remove seed from flowerhead. Seeds are then air-screened, to remove chaff and inert material, using a Clipper Eclipse, Model 324, with a top screen: 6 round, 2nd screen: 6 round and a bottom screen: 1/25 round, medium to high air, (screen size and air can vary by lot). Seed lot is finished, using an Oliver Model 30, Gravity Separator, Speed: 20, Air: 50, Hopper speed: 1.5 (speed, air, and hopper speed vary by lot). This final process removes remaining nonviable seed and inert material. Number of Seeds per Pound: 168,000, Purity: 99.61% (OSU Seed Laboratory Analysis), X-Ray 100 Seeds: 97% Filled, TZ: 83% (OSU Seed Laboratory Analysis), Moisture Content: 9.17%
Harvesting, Storage and Shipping: Storage: Cold Storage, 33-38 Degrees Fahrenheit
Other Comments: Seed lots that are grown in nurseries may present unique challenges and may be processed differently than native collections.

Citation:

Barner, Jim. 2009. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Eriogonum umbellatum Torr. 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.