Petasites frigidus
var. palmatus- Western, Sweet, or Palmate coltsfoot
Range: Native to the
PNW, occurring mostly west of the Cascades.
Found from
Climate, elevation: low
to middle elevations.(Pojar
1994)
Local occurrence: Common
and widespread.(Pojar 1994) Especially common on sliding bluffs above
Habitat preferences: Moist to wet forest, thickets, swamps,
openings, clearings. (Pojar 1994) Full sun to part shade.
(Jacobson 2001)
Plant strategy type/successional
stage: Rhizomatous perennial herb.
(Spear Cooke 1997)
Associated species: Not
specified.
May be collected as: Seed
(Baskin 2002)
Collection restrictions or guidelines: Not specified
Seed germination: Germination occurs at 22 C, seeds are non dormant (Baskin 2002)
Seed life: Not
specified.
Recommended seed storage conditions: Not specified.
Propagation recommendations: Not specified.
Soil or medium requirements: Not specified.
Installation form: Not specified.
Recommended planting density: Not specified.
Care requirements after installed: Not
specified.
Normal rate of growth or spread: Not
specified.
Sources cited:
Baskin, Carol C.; Baskin, Jerry M.
2002. Propagation protocol for production of container Petasites frigidus
(L.) Fries plants;
Jacobson, A.L. (2001). Wild Plants of Greater
Pojar, J., MacKinnon, A.
(1994). Plants of the
Spear Cooke, S. (1997). A
Field Guide to the Common Wetland Plants of
USDA-NRCS. 2004. The PLANTS Database (http://plants.usda.gov).
Data compiled by: Jennifer Boardman,