Roadless Areas
Home/Species/ Idaho Strawberry

Waldsteinia idahoensis

Piper

Idaho Strawberry

G3Vulnerable Found in 2 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.127937
Element CodePDROS1S020
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilyRosaceae
GenusWaldsteinia
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 Date2023-11-27
Change Date1985-09-09
Edition Date2023-11-27
Edition AuthorsGries, D./Mancuso M. (1999), rev. A. Tomaino (2023)
Threat ImpactMedium
Range Extent5000-20,000 square km (about 2000-8000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Waldsteinia idahoensis is endemic to north-central Idaho and one location in extreme western Montana. The species is known in Idaho from thirty-four occurrences. It is extensive only in the South Fork Clearwater River basin where it is widespread in several major tributary drainages. Threats include timber harvesting and road maintenance.
Range Extent Comments
Waldsteinia idahoensis is known only from north-central Idaho and one location in extreme western Montana (MTNHP 2023, Flora of North America Editorial Committee 2014).
Occurrences Comments
Waldsteinia idahoensis is known from thirty-four occurrences in Idaho and one occurrence in Montana (MTNHP 2023, NatureServe 2023).
Threat Impact Comments
Populations may be threatened by timber harvesting, road maintenance and successional dynamics (MTNHP 2023).
Ecology & Habitat

Description

Idaho Barren Strawberry is a strongly rhizomatous, sparsely hirsute, perennial herb. The leaves are basal, and the stipules are membranous, adnate, and forming a broad base to the slender, 5-12 cm petioles. The blades are cordate to suborbicular, shallowly 3- to 5-lobed, coarsely toothed, and 3-5 cm broad. Peduncles with 1 or 2 ovate-lanceolate, simple to 3-lobed bracts are located near the 2- to 7-flowered, lanceolate-bracted, loose cymes that are sparsely glandular-pubescent above. The hypanthium is narrowly obconic and 2-3 mm long; its lobes are spreading, triangular-lanceolate, and ca. 4 mm long. The petals are cream or yellowish in color, suborbicular, and 4-5 mm long. There are ca. 70 stamens equalling the petals and 2-4 pistils. The ovary and achene are canescent, and the style is puberulent near the base.

Habitat

Waldsteinia idahoensis occurs on mesic forest floors, under open coniferous forest in the montane zone; canopy trees include grand fir, western red-cedar, ponderosa pine, and lodgepole pine (Flora of North America Editorial Committee 2014, MTNHP 1999, 2023).
Terrestrial Habitats
Forest/WoodlandForest - Conifer
Other Nations (1)
United StatesN3
ProvinceRankNative
IdahoS3Yes
MontanaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
4 - Transportation & service corridorsSmall (1-10%)Slight or 1-10% pop. decline—
5 - Biological resource useLarge (31-70%)Moderate or 11-30% pop. decline—
5.3 - Logging & wood harvestingLarge (31-70%)Moderate or 11-30% pop. decline—
7 - Natural system modificationsUnknown——

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (2)
Idaho (1)
AreaForestAcres
Bighorn - WeitasNez Perce-Clearwater National Forest254,845
Montana (1)
AreaForestAcres
HoodooLolo National Forest105,162
References (7)
  1. Flora of North America Editorial Committee (FNA). 2014b. Flora of North America north of Mexico. Vol. 9. Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York. xxiv + 713 pp.
  2. Global Biodiversity Information Facility (GBIF). 2023. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2023).
  3. 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.
  4. Lackschewitz, K., P. Lesica and J. S. Shelly. 1988. Noteworthy collections: Montana. Madrono 35:355-358.
  5. Mancuso, Michael. Botanist, Idaho Conservation Data Center, Boise, Idaho. Personal communication.
  6. Montana Natural Heritage Program. 1999. April 1 - last update. Species Information: Waldsteinia idahoensis. Montana Natural Heritage Program. Online. Available: http://orion2.nris.state.mt.us/mtnhp/plants/index.html Accessed 1999, April 14.
  7. Montana Natural Heritage Program (MTNHP). 2023. Idaho Barren Strawberry - <i>Waldsteinia idahoensis</i>. Montana Field Guide. Montana Natural Heritage Program. Online. Available: https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PDROS1S020 (accessed 2023).