Heuchera alba Rydberg. Section: Heuchera. Subsection: Heuchera. Phen: Jul-Sep. Hab: Quartzitic outcrops at high elevations (WV and VA), on acid cliffs at lower elevations (PA). Dist: C. PA south to w. VA and ne. WV. See Schuette et al. (2018) for discussion of the taxon and its range extension northwards into c. PA.
ID notes:Heuchera alba differs from H. pubescens in its large flowers with white, exserted petals (vs. greenish or purplish-green petals), and occurs at higher to lower elevations on acidic substrates, such as quartzitic sandstones (vs. at lower elevations on circumneutral or subacidic substrates).
Origin/Endemic status: Endemic
Synonymy: = FNA8, K1, K3, K4, Va, WV, Schuette et al (2018); = n/a – Pa; < Heuchera pubescens Pursh – C, F, S, S13, W, Wells (1984); < Heuchera pubescens Pursh var. brachyandra Rosend., Butters, & Lakela – G, Rosendahl, Butters, & Lakela (1936)
Heliophily: 7
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© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷Feedback
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