Diphasiastrum complanatum (Linnaeus) Holub. Common name: Northern Running-Cedar. Habitat: Forests, woodlands, edges. Distribution: The presence of this species as far south as s. NY and ne. PA is complicated. Alleged by Gleason & Cronquist (1991) to reach "south in our range to Pa. and Minn.". Wherry et al. (1979) cited numerous occurrences in PA which have since been annotated as D. ×habereri; however, Rhoads and Block (2007) later rejected this species from PA, apparently due to a lack of specimens. It has been documented in Sullivan County, NY, which sits at the PA/NY border; however, Werier et al. (2022) explain that many specimens collected in NY labeled as D. complanatum may actually be D. digitatum. Lastly, some specimens collected in northeastern PA appear to potentially be D. complanatum (S. Grund, pers. comm.; 2022); however, these and the aforementioned specimens need critical examination before we can confirm or deny the legitimate (historical or current) presence of this species in PA.
Origin/Endemic status: Native
Synonymy ⓘ: = Can, FNA2, K4, NE, NY; = Lycopodium complanatum L. — C, NS, POWO, Wilce (1965); = Lycopodium complanatum L. var. complanatum — F, G; = n/a — Pa
Links to other floras: = Diphasiastrum complanatum - FNA2
Wetland Indicator Status:
- Midwest: FACU
- Northcentral & Northeast: FACU
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Horticultural Information
No horticultural data found for this taxon.