Betula cordifolia Regel. Common name: Mountain Paper Birch, Heartleaf Birch, Speckled Birch. Phenology: May-Aug; Jul-Sep. Habitat: High elevation forests, southwards primarily on talus of avalanche chutes (as in the Black Mountains, Yancey County, NC, and the Great Smoky Mountains, Sevier County, TN), and on talus slopes and adjacent forests at high elevations. Distribution: NL (Newfoundland) and e. QC south to the mountains of NY; disjunct in n. MN, e. WV (Vanderhorst et al. 2019), w. NC, and e. TN (Sevier County; Tennessee Flora Committee 2015).
Origin/Endemic status: Native
Taxonomy Comments: A diploid species (2n=2x=28).
Synonymy ⓘ: = Can, FNA3, G, K4, NE, NY, POWO, S, Tn, Ashburner & McAllister (2016), Furlow (1990), Hardin (1971a); = Betula papyrifera Marshall var. cordifolia (Regel) Fernald — C, F, GrPl, NS, RAB, W; = n/a — S13; < Betula papyrifera Marshall — Pa. Basionym: Betula cordifolia Regel 1861
Links to other floras: = Betula cordifolia - FNA3
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Wetland Indicator Status:
- Eastern Mountains and Piedmont: FACU
- Great Plains: FACU
- Midwest: FACU
- Northcentral & Northeast: FACU
Heliophily ⓘ: 5
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© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Alex Graeff, some rights reserved (CC BY-NC-ND), uploaded by Alex Graeff source CC-BY-NC-ND, permission granted to NCBG | Original Image ⭷
© Alex Graeff, some rights reserved (CC BY-NC-ND), uploaded by Alex Graeff source CC-BY-NC-ND, permission granted to NCBG | Original Image ⭷
© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Alex Graeff, some rights reserved (CC BY-NC-ND), uploaded by Alex Graeff source CC-BY-NC-ND, permission granted to NCBG | Original Image ⭷
© Michael J. Oldham, some rights reserved (CC BY-NC), uploaded by Michael J. Oldham source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Erik Danielson source | Original Image ⭷Feedback
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