09 July 2025.
Carbon County, Pennsylvania, United States
Locality: Hickory Run Boulder Field
Coordinates: 41.0497, -75.6430
(Map it)
Elevation: 555m.
Habitat: Wild Habitat
Environment description: Gowing within ca 15 m of boulder field edge, most individuals occured on sun-exposed margin.
Number of plants sampled: 6
Associated species: Ilex verticillata; Betula lenta; Picea rubens; Gaylussacia baccata; Amelanchier arborea; Sorbus americana; Pinus strobus; Rhododendron maximum; Gaultheria procumbens; Kalmia latifolia; Acer rubrum; Tsuga canadensis; Hamamelis virginiana; Kalmia angustifolia.
Comment: Taxon was abundant here but occured only along perimeter of boulder field with ample sun exposure. Soils strongly organic, very dry.