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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 (multicostata)

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 multicostata Mackenzie
Common Name: manyrib sedge
Species Code: CAMU6
Ecotype: Seeds were collected from Crater Lake.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 0
Pre-Planting Treatments: 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 were covered with polyethlene bags and placed in the walk-in cooler for 90-days. After stratification flats were placed in greenhouse set at moderate temperatures (70 degree days/50 degree nights.)
Trays removed at 5 weeks resulted in good emergence after two weeks. Seedlings were vigorous and germination was estimated at 80%. No significant differences in emergence or seedling vigor were noted between 5, 10 or 16 week-stratified seeds. 0 germinants were observed in control flats.

Citation:

Bartow, Amy L. 2004. Propagation protocol for production of Container (plug) Carex multicostata Mackenzie plants USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/24). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.