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Home/Species/ Roughleaf Aster

Eurybia radulina

(Gray) Nesom

Roughleaf Aster

G4Apparently Secure (G4G5) Found in 22 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Medium - lowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.134823
Element CodePDASTEB0K0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusEurybia
Synonyms
Aster radulinusGray
Other Common Names
Aster râpette (FR)
Concept Reference
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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-02-05
Change Date1988-08-01
Edition Date2024-02-05
Edition AuthorsNordman, C. (2024).
Threat ImpactMedium - low
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
Roughleaf Aster (Eurybia radulina) occurs in the Pacific Northwest region of North America, and it is known from southwestern British Columbia in Canada, Washington, Oregon and California in the United States. It occurs in the Cascade Range, Coast Range (south to the Channel Islands), and northern and central Sierra Nevada. It is it is estimated that there are more than 300 occurrences, including on various National Forests and State Parks. Threats to Roughleaf Aster (Eurybia radulina) include the fragmentation and loss of habitat from residential, tourism, and recreation development and urbanization.
Range Extent Comments
Roughleaf Aster (Eurybia radulina) occurs in the Pacific Northwest region of North America where it is known from southwestern British Columbia in Canada, Washington, Oregon and California in the United States. It occurs in the Cascade Range, Coast Range (south to the Channel Islands), and northern and central Sierra Nevada. Range extent was estimated to be 370,000 square kilometers using herbarium specimens and photo-based observations documented between 1993 and 2024 (FNA 2006, CCH2 Portal 2024, GBIF 2024, iNaturalist 2024, SEINet 2024).
Occurrences Comments
By applying a 1 km separation distance to herbarium records and photo-based observations documented between 1993 and 2024, it is estimated that there are more than 300 occurrences of Roughleaf Aster (Eurybia radulina), rangewide (CCH2 Portal 2024, GBIF 2024, iNaturalist 2024, SEINet 2024).
Threat Impact Comments
Threats to Roughleaf Aster (Eurybia radulina) include the fragmentation and loss of habitat from residential, tourism, and recreation development and urbanization.
Ecology & Habitat

Diagnostic Characteristics

Roughleaf Aster (Eurybia radulina) thrives at lower elevations than E. merita which is similar. Even though the two are often confused, populations are rarely if ever sympatric (Flora of North America Editorial Committee 2006).

Habitat

Roughleaf Aster (Eurybia radulina) occurs in "dry rock outcrops, edges of forests, open forests, mostly on slopes, foothill oak woodlands, oak, oak-fir, yellow pine forests" (FNA 2006).
Terrestrial Habitats
Forest EdgeWoodland - HardwoodWoodland - ConiferWoodland - MixedBare rock/talus/scree
Other Nations (2)
United StatesN4
ProvinceRankNative
OregonSNRYes
CaliforniaSNRYes
WashingtonSNRYes
CanadaN2
ProvinceRankNative
British ColumbiaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial developmentRestricted - smallSerious or 31-70% pop. declineHigh (continuing)
1.1 - Housing & urban areasRestricted - smallSerious or 31-70% pop. declineHigh (continuing)
1.3 - Tourism & recreation areasSmall (1-10%)Moderate or 11-30% pop. declineHigh (continuing)

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Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (22)
California (13)
AreaForestAcres
Blue Creek Rare ISix Rivers National Forest12,134
Bucks LakePlumas National Forest680
Castle Crags AShasta-Trinity National Forest113
Castle Crags BShasta-Trinity National Forest1,619
Chips CreekPlumas National Forest12,940
Cow CreekShasta-Trinity National Forest22,627
IshiLassen National Forest21,805
Little French CShasta-Trinity National Forest11,529
Middle ForkPlumas National Forest29,278
Mill CreekLassen National Forest7,587
North Fork SmithSix Rivers National Forest37,898
South ForkShasta-Trinity National Forest16,786
West GirardShasta-Trinity National Forest37,516
Oregon (8)
AreaForestAcres
Bull Of The WoodsMt. Hood National Forest8,843
ElkhornWillamette National Forest9,380
French Pete (a)Willamette National Forest1,668
LarchMt. Hood National Forest12,961
Mclennon MountainWillamette National Forest8,085
North KalmiopsisSiskiyou National Forests91,560
Opal CreekWillamette National Forest5,417
Sky Lakes AWinema National Forest3,940
Washington (1)
AreaForestAcres
Blue SlideWenatchee National Forest17,505
References (6)
  1. CCH2 Portal. 2024. Consortium of California Herbaria. Online. Available: https//:www.cch2.org/portal/index.php (Accessed 2024).
  2. 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.
  3. Global Biodiversity Information Facility (GBIF). 2024. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2024).
  4. iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
  5. 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.
  6. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).