Packera (cymbalarioides)

Tara Luna USDI NPS - Glacier National Park West Glacier, Montana 59936 (406) 888-7835 http://plant-materials.nrcs.usda.gov/azpmc

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Family Scientific Name:	Asteraceae
Family Common Name:	Sunflower Family
Scientific Name:	Packera cymbalarioides (Buek) W.A. Weber & A. L”ve
Common Synonym:	Senecio cymbalarioides Buek.
Common Name:	Alpine Butterweed
Species Code:	PACCYM
Ecotype:	Subalpine meadows, Logan Pass, Glacier National Park, Glacier County, MT 2030 meters
General Distribution:	P. cymbalarioides is found in wet often organic soil of alpine and subalpine meadows and along small high elevation streams; from British Columbia and Alberta south to California, Idaho, and Wyoming.
Propagation Goal:	plants
Propagation Method:	seed
ProductType:	Container (plug)
Stock Type:	160 ml conetainers
Time To Grow:	8 Months
Target Specifications:	Stock Type: Container seedling<br> Height: 3 cm with multiple leaves<br> Caliper: N/A<br> Root System: Firm plug in container.
Propagule Collection:	Seeds are hand collected in late September when achenes are easily separated from the disk. Seeds are grey at maturity. Seeds are collected in paper bags and kept in a well ventilated greenhouse during the drying process and prior to cleaning.
Propagule Processing:	Seeds are hand cleaned with screens to remove pappus from the achenes. Seed longevity is unknown for this species. Seed dormancy is classified as physiological dormancy. Seeds per kilogram: unknown % Purity: 100% % Germination: 100%
Pre-Planting Treatments:	5 month cold moist stratification period.
Growing Area Preparation/ Annual Practices for Perennial Crops:	Outdoor Nursery. Sowing Method: Direct Seeding. Seeds are lightly covered with media. Container Type and Volume: 160 ml (7 cu. inch) Ray-leach conetainers. Media: 6:1:1 milled sphagnum peat, perlite, vermiculite. Seed is hand sown at the rate of 5 seeds per cell and lightly covered with perlite and thoroughlywatered prior to winter stratification.
Establishment Phase:	Germination is uniform and continues over a 2 week period following snowmelt in the spring. True leaves appear 3 weeks after germination and seedlings are thinned to 1 per cell at this stage. Seedlings are irrigated only when the media is dry on the surface at during this stage.
Length of Establishment Phase:	4 weeks
Active Growth Phase:	Seedlings produce multiple leaves 8 weeks after germination. Seedlings are fertilized twice weekly with 20-10-20 liquid NPK at 100 ppm and media is kept evenly moist during this stage. Plants are fully root tight 8 weeks after germination.
Length of Active Growth Phase:	4 weeks
Hardening Phase:	Plants can be hardened off prior to planting in July for 2 weeks. Plants that are held over in the nursery are fertilized with 10-20-20 liquid NPK at 200 ppm during September.<br>Irrigation is gradually reduced in September and October. Plants are given one final irrigation prior to winterization.<br> Harvest Date: July
Length of Hardening Phase:	2 weeks or 2 months
Harvesting, Storage and Shipping:	Total Time To Harvest: 8 months Harvets Date: July Storage Conditions: Overwinter in outdoor nursery under insulating foam cover and snow.
Length of Storage:	5 months
References:	Flora of the Pacific Northwest, hitchcock and Cronquist, University of Washington Press,7th printing, 1981. Flora of Glacier National Park, Lesica, in press, 2000. Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination, Baskin and Baskin, Academic Press,1998. Glacier National Park Propagation Records, unpublished.

Citation:

Luna, Tara; Wick, Dale. 2001. Propagation protocol for production of Container (plug) Packera cymbalarioides (Buek) W.A. Weber & A. L”ve plants 160 ml conetainers; USDI NPS - Glacier National Park West Glacier, Montana. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/02/25). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.