Carex (nebrascensis)
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J Chris Hoag Wetland Plant Ecologist USDA NRCS - Aberdeen Plant Materials Center PO Box 296 Aberdeen, Idaho 83210 chris.hoag@id.usda.gov http://plant-materials.nrcs.usda.gov/idpmc |
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| Family Scientific Name: | Cyperaceae | ||
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| Family Common Name: | Sedge family | ||
| Scientific Name: | Carex nebrascensis Dewey | ||
| Common Name: | Nebraska sedge | ||
| Species Code: | CARNEB | ||
| Ecotype: | from Trout Creek, near Jackpot, Nevada (Lat 41ø48'N Long 115ø7'W), and the Sterling Wildlife Management Area (WMA) near Aberdeen, Idaho (Lat 42ø57'N Long 112ø50'W). | ||
| General Distribution: | C. nebrascensis is found in wet places, often where alkaline, from lowlands to mid montane elevations. It ranges from Washington to Calfornia, wholly east of the Cascades, east to South Dakota,Kansas, and Nebraska, and through the Rocky Mountain states to New Mexico. | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Stock Type: | Germination techniques | ||
| Time To Grow: | 0 | ||
| Target Specifications: | Height: n/a<br> Caliper: n/a <br> Root System: n/a <br> | ||
| Propagule Collection: | We collected achenes during September using a prairie seed stripper (Prairie Habitats, Argyle, Manitoba, Canada) and ran the material through a Jacobson hammer mill (Model "Little Jake", Jacobson Machine Works Inc, Minneapolis, Minnesota) to break up the vegetative material and other large debris collected with achenes. | ||
| Propagule Processing: | The material was run through a Clipper "Office" fanning mill with a No. 8 top screen, a No. 20 bottom screen, and the airflow adjusted to a very slow speed (Clipper, Blufton, Indiana). Cleaned achenes were stored about 8 to 12 mo at room temperature (22 øC [72 øF]) before use. | ||
| Pre-Planting Treatments: | Germination of achenes is best after scarification and stratification. To scarify achenes with sandpaper, we use a scarification box that measures 10 X 14 X 2.5 cm (4 X 6 X 1 in) made out of pine lumber. The bottom of the box is lined with 100 grit sandpaper. A small piece of wood that fits into the box is wrapped with 100 grit sandpaper. We put about 60 to 100 achenes in the bottom of the box and using the block, lightly rub the achenes for about 10 to 15 sec. Place the achenes in a cloth or mess bag and then cold, moist stratify them with a sphagnum peat moss substratefor about 30 days at 3 øC (37 øF). During germination, keep temperatures very warm and the germination medium very moist. Diurnal temperatures of 26 øC (78 øF) and 37 øC (98 øF) work well. Achenes also germinate well when given a 24-h photoperiod. | ||
| Other Comments: | The perigynium is a source of achene dormancy in Nebraska sedge. Perigynia can be removed by various methods, but brief, light rubbing of achenes with sandpaper is an easy method for small quantities. Some physiological dormancy also resides within the achene, and it is at least partially dissipated by 32 d of cold-moist stratification. Cold-moist stratification also improved germination rate. Total germination of scarified and stratified achenes was best when sphagnum peat moss was the stratification substrate. | ||
| References: | Perigynium removal and cold-moist stratification improve germination of Carex nebrascensis (Nebraska sedge). Hoag, JC; Dumroese, RK; Sellers, ME. 2001. Native Plants Journal 2(1): in press. | ||
Citation:
Hoag, J. Chris. 2001. Propagation protocol for production of Container (plug) Carex nebrascensis Dewey plants Germination techniques; USDA NRCS - Aberdeen Plant Materials Center Aberdeen, Idaho. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/04/19). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
