Ranunculus occidentalis Nutt.
Range: South-western North America -
Climate, elevation: Sea level to 1800 m, Hardy to 0°C, 10-50 inches of rain, Shade tolerant, Moderate salinity tolerance, Fire adapted
Local occurrence (where, how common): Common
Habitat preferences: Vernally moist ground and grassy slopes in Wetlands, Meadows, Foothill Woodland, Yellow Pine Forest, Coastal Prairie, Red Fir Forest and Lodgepole Pine Forest
Plant strategy type/successional stage: Perennial, Mid successional until canopies close
Associated species: Festuca romeri, Eriophyllum lanatum, Lomatium utriculatum, Achillea millefolium, Prunella vulgaris, Agrostis capillaries, Viola adunca var. adunca, Luzula comosa
May be collected as: Seed in late summer
Collection restrictions or guidelines: Unlisted
Seed germination: Sow at 18-22ºC (64-71ºF) for 2-4 wks, move to 5ºC (23ºF) for 4-6 wks, move to 5-12ºC (41-53ºF) for germination
Seed life: Short Viability
Recommended seed storage conditions: Cool and dry, does not store long.
Propagation recommendations: Seed - sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Soil or medium requirements: Excellent drainage is necessary in cultivation. Need dry summers in cultivation.
Installation form: Success has been had plugging in
prairies on the
Recommended planting density: Naturally not in dense patches, but does not spread colonially or rapidly from seed. Good survivorship from plugs. Dense planting is not necessary.
Care requirements after installed: Plants respond well to controlled burning. Supplemental irrigation may be necessary.
Normal rate of growth or spread; lifespan: Non-rhizomatous, slowly spreads by seeds
Calflora: Information on
- Clothier, Tom. http://tomclothier.hort.net/ (accessed Apr 25, 2006)
- Dunwiddie, Peter W., Management and Restoration of Grasslands on Yellow Island, San Juan Islands, Washington, USA, From: http://conserveonline.org/docs/2002/04/Management_and_Restoration_of_Grasslands_on_Yellow_Island2.doc
Hickman, J.C. (editor) 1993, The
Brian. (Editor) 2004.
for a Future,
- USDA, PLANTS database. http://plants.usda.gov
- Washington State Department of Natural Resources, http://www.dnr.wa.gov/nhp/refdesk/communities/pdf/fero-seri.pdf. (Accessed 4/25/06)
Data compiled by: Sierra Smith 4/24/06