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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

Carex (densa)

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: Cyperaceae
Family Common Name: sedge family
Scientific Name: Carex densa
Common Synonym: Carex breviligulata
Common Name: dense sage
Species Code: CADE8
Ecotype: Seeds from Douglas Co. Oregon
General Distribution: Found on the west side of the Cascade Mountain range from central Washington (rare), throughout western Oregon, to northern California. Grows in dense tufts 1.5–3.5 feet tall in seasonally wet areas, such as in vernal pools, on ditchbanks, or wet meadows and marshes from coastal lowlands to western hillsides.
Propagation Goal: plants
Propagation Method: seed
ProductType: Plug + (container-field grown hybrids)
Time To Grow: Weeks
Target Specifications: Well-developed crowns, roots and rhizomes filling soil profile in container.
Propagule Collection: Moderate. Carex densa should be fairly easy to identify as it has a specific growth habit and generally has relatively large inflorescences (1 to 2¼ inches long by ½ to 1 inch wide) on tall stems (up to waist-height).Seeds per pound: 600,000–700,000
Propagule Processing: Seeds are easily removed from inflorescences using either a combine (during the harvesting process), a stationary combine, or a thresher. An air-screen machine will further separate seed from remaining plant materials and debris.
Pre-Planting Treatments: Seeds germinated within 2 weeks when placed in a warm greenhouse (75 degrees). Trials were conducted using different lengths of cold moist stratification: Percent germination with no stratification = 75, 45 days cold-moist stratification= 40, 90 days cold moist stratification= 55

Citation:

Bartow, Amy. 2015. Propagation protocol for production of Plug + (container-field grown hybrids) Carex densa plants 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.