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Fragaria cascadensis

K.E. Hummer

Cascade Strawberry

G3Vulnerable (G3G4) Found in 14 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Medium - lowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.1147438
Element CodePDROS0R070
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilyRosaceae
GenusFragaria
Concept Reference
Hummer, K. 2012. A new species of Fragaria (Rosaceae) from Oregon. Journal of the Botanical Research Institute of Texas 6(1):9-15.
Taxonomic Comments
Fragaria cascadensis is an unusual cytotype that "went unnoticed." Hummer (2012) suggests a revision to Staudt's (1999) description of a "smooth" adaxial leaf surface to "smooth and glabrous" for Fragaria virginiana ssp. platypetala. Fragaria cascadensis may be a hybrid derivative of octoploid F. virginiana subsp. platypetala and F. vesca subsp. bracteata (DiMeglio et al. 2014).
Conservation Status
Rank MethodLegacy Rank calculation - Biotics v1
Review Date2020-04-01
Change Date2020-04-01
Edition Date2020-04-01
Edition AuthorsTreher (2020)
Threat ImpactMedium - low
Range Extent5000-20,000 square km (about 2000-8000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Fragaria cascadensis is endemic to Oregon, found in the western high Cascade Mountain Range from the Columbia River to the Crater Lake region. There are less than 50 known occurrences. With intentional efforts to document the species distribution and abundance, the species might be found to be more abundant than currently indicated by herbarium records. Threats and trends to this species are unknown. Road maintenance could be a potential threat, as multiple occurrences are roadside.
Range Extent Comments
Fragaria cascadensis is endemic to the western high Cascade Mountain Range in Oregon (Hummer 2012) from the Columbia River to the Crater Lake region. All historic and recent occurrence data were included in the calculation of Range Extent (GBIF 2020, SEINet 2020, USDA ARS 2020).
Occurrences Comments
There are less than 60 occurrences documented (SEINet 2020) but there are likely more to be found with increased search effort.
Threat Impact Comments
Some occurrences are along roadside, where maintenance could be a potential threat (SEINet 2020).
Ecology & Habitat

Diagnostic Characteristics

Fragaria cascadensis is distinguished with a distal tooth of the terminal leaflet that is always smaller than adjacent teeth and comma-shaped achenes, in addition to having adaxial leaf hairs, unlike Fragaria virginiana ssp. platypetala which has smooth and glabrous adaxial leaf surfaces. Fragaria chiloensis has thick, coriaceous leafs, not like those of F. cascadensis. It can be differentiated from Fragaria vesca ssp. bracteata by leaf color, bright green leaves (F. v. ssp. bracteata) versus bluish green to green leaves (F. cascadensis).

Habitat

Fragaria cascadensis grows in forest clearings and meadows with sandy-clay loams of volcanic origin at elevations of 1,000 to 3,800 m (Hummer 2012).
Terrestrial Habitats
Forest/WoodlandGrassland/herbaceous
Other Nations (1)
United StatesN3
ProvinceRankNative
OregonSNRYes
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)Yes
Roadless Areas (14)
California (1)
AreaForestAcres
Trail LakeLassen National Forest1,124
Oregon (13)
AreaForestAcres
Echo MountainWillamette National Forest8,098
Frog CampWillamette National Forest491
Maiden PeakDeschutes National Forest26,432
Maiden PeakWillamette National Forest9,627
Mt. JeffersonDeschutes National Forest2,282
Mt. BaileyUmpqua National Forest18,401
Mt. Hood AdditionsMt. Hood National Forest13,061
Roaring RiverMt. Hood National Forest27,316
Salmon - HuckleberryMt. Hood National Forest17,570
WaldoDeschutes National Forest4,973
Waldo - FujiWillamette National Forest15,273
West - South BachelorDeschutes National Forest25,994
Wind CreekMt. Hood National Forest5,438
References (5)
  1. DiMeglio, L.M., G. Staudt, H. Yu, and T.M. Davis. 2014. A phylogenetic analysis of the genus <i>Fragaria</i> (strawberry) using intron-containing sequence from the ADH-1 gene. PloS one 9(7):e102237.
  2. Global Biodiversity Information Facility (GBIF). 2020. GBIF data accessed through GeoCAT portal. Online. Available: http://geocat.kew.org/ (accessed 2020).
  3. Hummer, K. 2012. A new species of <i>Fragaria</i> (Rosaceae) from Oregon. Journal of the Botanical Research Institute of Texas 6(1):9-15.
  4. Southwest Environmental Information Network (SEINet). 2020. Collections Databases. Online. Available: http://swbiodiversity.org/seinet/collections/index.php (accessed 2020).
  5. USDA Agricultural Research Service (USDA ARS). 2020. Germplasm Resources Information Network (GRIN). Ag Data Commons. <a href="https://doi.org/10.15482/USDA.ADC/1212393">https://doi.org/10.15482/USDA.ADC/1212393</a>. (accessed 2020).