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Lycopodiaceae
Diphasiastrum

not marked as a favorite taxon Diphasiastrum complanatum (Linnaeus) Holub. Common name: Northern Running-Cedar. Habitat: Forests, woodlands, edges. Distribution: The presence of this species as far south as s. New York and ne. Pennsylvania 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 Pennsylvania which have since been annotated as D. ×habereri; however, Rhoads and Block (2007) later rejected this species from Pennsylvania, apparently due to a lack of specimens. It has been documented in Sullivan County, New York, which sits at the Pennsylvania/New York border; however, Werier et al. (2022) explain that many specimens collected in New York labeled as D. complanatum may actually be D. digitatum. Lastly, some specimens collected in northeastern Pennsylvania 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 Pennsylvania.

Glossary (beta!)

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. Basionym: Lycopodium complanatum L. 1753

Links to other floras: = Diphasiastrum complanatum - FNA2

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Wetland Indicator Status:

  • Midwest: FACU
  • Northcentral & Northeast: FACU

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Horticultural Information

No horticultural data found for this taxon.