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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

Dalea (ornata)

Ann DeBolt
Botanist
Idaho Botanical Garden
2355 Old Penitentiary Road
Boise, Idaho 83712
2085778137
ann@idahobotanicalgarden.org
www.idahobotanicalgarden.org

Family Scientific Name: Fabaceae
Family Common Name: Pea Family
Scientific Name: Dalea ornata (Douglas ex Hook.) Eaton & Wright
Common Synonym: Petalostemon ornatus Douglas ex Hook.
Common Name: Blue Mountain prairie clover
Species Code: DAOR2
Ecotype: BLM, Seeds of Success: Near Grand View in Owyhee County, southeast of Boise, Idaho. Elevation 2356 feet (718 m). Accession Number SOS-931-117-09.
General Distribution: Rocky or sandy salt desert shrub and sagebrush-steppe habitats at low to moderate elevations in southeast Washington, western Idaho, eastern Oregon, northeast California and northwest Nevada. Often on ash outcrops in Idaho and Oregon.
Known Invasiveness: None known.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Stock Type: 2.875 inch x 9 inch plant band (container)
Time To Grow: 5 Months
Target Specifications: Healthy root development filling container
Propagule Collection: Seed was hand collected in mid-summer in 2009 by BLM botany technicians. Seed was placed directly into brown paper bags. A small piece of No-Pest Strip was placed in each bag for 2-3 days to reduce insect predation. Seed was air dried in paper bags at room temperature.
Propagule Processing: According to Nita Rauch, USFS Bend Seed Extractory, seed lots of this species have been cleaned as follows:
1.) F.S. Missoula Dewinger: Hopper Feed = 15, black liner, tilt = 3 & speed = 5 for about 1 hour.
2) OEM Continuous Seed Blower: Set on Low (= 300) for 40 minutes.
Seed can be cleaned to a purity of 96%-98%, with seeds ranging from 168,000-187,400 per pound. Using x-ray equipment, 80% of the seeds in lot SOS-931-117-09 were filled.
Pre-Planting Treatments: Seed was stored at room temperature in a dark location prior to sowing.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Sowing Method: Each seed was scarified by swiping once across a fingernail file. Seed was then soaked in distilled water at room temperature for 20 hours. Of the 600 seeds, more than 50% germinated while soaking. Two to three seeds were sown ¬ inch deep in each container. Potting soil was a 2:1:5 mix of lava fines, perlite, and Sunshine Mix #4. Chicken grit was spread on the surface of each container. Containers were hand watered and placed outside on April 16th. No fertilizer was added to the soil mix.
Establishment Phase: 40%-50% of the seed resulted in established seedlings.
Length of Establishment Phase: About 2 months
Active Growth Phase: Containers were allowed to dry slightly between hand watering. A weak fish emulsion fertilizer was applied twice a month from April through June. Plants were grown outside in full sun until outplanting in early October. Some seedlings were dormant by mid-September.
Length of Active Growth Phase: 4 months
Other Comments: Plants were not permitted to flower while in the nursery. Flower stalks were removed as soon as they were observed. We produced a total of 255 plants from the 600 seeds. Nine inch containers were used because of the long taproot.
References: Intermountain Flora: Vascular Plants of the Intermountain West, U.S.A., Fabales, Vol. 3B. Barneby, R. C. The New York Botanical Garden, Bronx, NY. 1990.

Citation:

DeBolt, Ann M.; Barrash, Kris. 2013. Propagation protocol for production of Container (plug) Dalea ornata (Douglas ex Hook.) Eaton & Wright plants 2.875 inch x 9 inch plant band (container); Idaho Botanical Garden Boise, Idaho. 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.