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Cirsium (arizonicum)

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: Asteraceae
Family Common Name: Aster family
Scientific Name: Cirsium arizonicum (A. Gray) Petr.
Common Name: Arizona thistle
Species Code: CIAR3
Ecotype: USFS, Boise National Forest, Lucky Peak Nursery, Boise, Idaho: 2842 ft. elevation
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0
Propagule Collection: Small lot, 0.5 pounds, grown and harvested at USFS, Lucky Peak Nursery, Boise, Idaho.
Propagule Processing: METHOD OF CLEANING: Seed lot is first processed (rubbed) by hand, using gloves, to remove seed from flower heads. Seed is then air-screened, to remove nonviable seed and inert material, using an office Clipper, top screen: 10 round and a bottom screen: 1/12 or 1/15 round, medium speed, and medium to high air. Number of Seeds per Pound: 49,900, Purity: 98%, X-Ray 100 Seeds: 76% Filled
Harvesting, Storage and Shipping: Storage: Cold Storage, 33-38 Degrees Fahrenheit
Other Comments: Seed lots that are grown in nurseries may present unique challenges and may be processed differently than native collections.

Citation:

Barner, Jim. 2009. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Cirsium arizonicum (A. Gray) Petr. seeds USDA FS - R6 Bend Seed Extractory Bend, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/23). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.