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Ceanothus (cordulatus)

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: Rhamnaceae
Family Common Name: Buckthorn family
Scientific Name: Ceanothus cordulatus Kellogg
Common Name: Whitethorn ceanothus
Species Code: CECO
Ecotype: USFS, Rogue River-Siskiyou National Forest, Gold Beach Ranger District, Gold Beach, Oregon: 3800 ft. elevation
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0
Propagule Collection: Small lot, 0.315 pounds, hand collected into paper bag.
Propagule Processing: METHOD OF CLEANING: Seed cleaned using a Hoffman Hand Deawner/Debearder to remove seed from capsule. Laboratory Test Sieves, mesh size 6 and 12 are 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: 5 1/2 round and a bottom screen: 1/20 round, high speed, and medium to high air. Number of Seeds per Pound: 168,600, Purity: 99%, X-Ray 100 Seeds: 48% Filled, TZ: 80% (Oregon State University Seed Laboratory Analysis)
Harvesting, Storage and Shipping: Storage: Cold Storage, 33-38 Degrees Fahrenheit
Other Comments: Very 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.) Ceanothus cordulatus Kellogg seeds USDA FS - R6 Bend Seed Extractory Bend, 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.