Roadless Areas
Home/Species/ Siskiyou Mountains Butterweed

Packera macounii

(Greene) W.A. Weber & A. Love

Siskiyou Mountains Butterweed

G4Apparently Secure (G4?) Found in 11 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Medium - lowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.160459
Element CodePDAST8H1Z0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusPackera
Synonyms
Senecio macouniiGreene
Other Common Names
Séneçon de Macoun (FR)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2021-10-01
Change Date2021-10-01
Edition Date2021-10-01
Edition AuthorsStoner, N. (1993), rev. A. Tomaino (2021)
Threat ImpactMedium - low
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 300
Rank Reasons
Regional endemic of southern British Columbia, western Washington, western Oregon, and northern California.
Range Extent Comments
Packera macounii is known from southern British Columbia, western Washington, western Oregon, and northern California (Flora of North America Editorial Committee 2006, NatureServe 2021).
Occurrences Comments
In Washington, there are 3 extant occurrences; Packera macounii was historically more widespread in prairie habitats in Puget Sound, but is now extirpated there (W. Fertig, pers. comm., 2021). The number of occurrences in British Columbia, Oregon, and California is not known but based on herbarium records may be approximately 70 (CPNWH 2021, CCH 2021).
Ecology & Habitat

Habitat

Occasional in meadows and along the coast. Open woods and dry open places.
Other Nations (2)
CanadaN3
ProvinceRankNative
British ColumbiaS3Yes
United StatesNNR
ProvinceRankNative
WashingtonS1Yes
CaliforniaS3Yes
OregonSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (11)
California (9)
AreaForestAcres
Blue Creek Rare ISix Rivers National Forest12,134
KangarooKlamath National Forest40,617
KellySix Rivers National Forest5,195
North Fork SmithSix Rivers National Forest37,898
PacksaddleSix Rivers National Forest3,862
Ship MountainSix Rivers National Forest11,936
SiskiyouKlamath National Forest54,039
Siskiyou BSix Rivers National Forest18,871
South KalmiopsisSix Rivers National Forest321
Oregon (2)
AreaForestAcres
North KalmiopsisSiskiyou National Forests91,560
South KalmiopsisSiskiyou National Forests104,477
References (8)
  1. CCH2 Portal. 2021. Consortium of California Herbaria. Online. Available: https//:www.cch2.org/portal/index.php (accessed 2021).
  2. Consortium of Pacific Northwest Herbaria (CPNWH). 2021. Specimen Database. Online. Available: http://www.pnwherbaria.org/data/search.php (accessed 2021).
  3. Flora of North America Editorial Committee (FNA). 2006b. Flora of North America north of Mexico. Vol. 20. Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford Univ. Press, New York. xxii + 666 pp.
  4. Hitchcock, C.L., and A. Cronquist. 1973. Flora of the Pacific Northwest: An Illustrated Manual. University of Washington Press, Seattle, Washington. 730 pp.
  5. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  6. Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
  7. NatureServe. 2021. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  8. Peck, M.E. 1961. A manual of the higher plants of Oregon. 2nd edition. Binsford & Mort, Portland, Oregon. 936 pp.