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Erythronium umbilicatum C.R. Parks & Hardin ssp. monostolum C.R. Parks & Hardin. Southern Appalachian Trout Lily. Phen: Mar-May; Apr-Jun. Hab: High elevation coves, slopes, and grassy balds, moist forests. Dist: Ssp. monostolum is endemic to the high mountains of NC and TN; it approaches the VA border and should be sought, especially in the Grayson Highlands area. A puzzling population in n. AL may represent this taxon.

Origin/Endemic status: Endemic

Taxonomy Comments: Plants at low elevations in n. AL ('Brasher's Trout-Lily') need additional study and may represent a new taxon (see Spaulding et al. 2023 for discussion). Colonial plants in the n. VA Blue Ridge similarly need additional study.

Other Comments: E. umbilicatum ssp. monostolum is a diploid (2n = 24).

Synonymy ⓘ: = FNA26, GW1, K1, K3, Mathew (1992), Parks & Hardin (1963); < Erythronium americanum Ker Gawl. – F, G, RAB, S, S13; < Erythronium umbilicatum C.R.Parks & Hardin – C, Tn, W

Links to other floras: = Erythronium umbilicatum ssp. monostolum - FNA26

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Wetland Indicator Status:

  • Eastern Mountains and Piedmont: FAC (taxonomic split from wetland indicator species)

Heliophily ⓘ: 4

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image of plant© Alan Cressler: Erythronium umbilicatum subsp. monostolum, Pisgah Ridge, Blue Ridge Parkway, Haywood County, North Carolina 3 by Alan Cressler source | Original Image ⭷
image of plant© Alan Cressler: Erythronium umbilicatum subsp. monostolum, Pisgah Ridge, Blue Ridge Parkway, Haywood County, North Carolina 1 by Alan Cressler source | Original Image ⭷
image of plant© J.W. Hardin | Original Image ⭷

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