Viola egglestonii Brainerd. Section: Nosphinium. Subsection: Borealiamericanae. Eggleston's Violet, Nashville Violet. Phen: Apr-May. Hab: Calcareous barrens and glades, also in disturbed calcareous sites, including pastures, roadsides, and lawns. Dist: Interior Highlands, s. IN south to nw. GA and n. AL (Chester, Wofford, & Kral 1997), nw. GA (Jones & Coile 1988).

ID notes: Among heterophyllous taxa, V. egglestonii is most similar to others with glabrous foliage in our region, namely V. edulis in the Edulis species group and V. viarum in the Viarum species group. It differs in its more deeply biternately divided leaf blades with 7-9 comparatively longer narrow lobes, the central lobe oblong to oblong-lanceolate and nearly or quite as narrow as or somewhat broader than the lateral ones, linear-lanceolate and acuminate sepals or lanceolate to ovate-lanceolate rounded sepals, glabrous or bearded spurred petal, unspotted cleistogamous capsule on short prostrate to ascending peduncle, short to weakly elongating auricles, unspotted brown seeds, and its habitat in limestone cedar glades of the Interior Low Plateau or in grassy areas (e.g., lawns) overlying limestone.

Origin/Endemic status: Endemic

Synonymy: = FNA6, K1, K2, K4, Ballard () (in prep), Gil-ad (1998); Viola egglestonii – Ballard, Kartesz, & Nishino (2023); = Viola egglestoni – F, G, orthographic variant; = Viola septemloba Leconte ssp. egglestonii (Brainerd) L.E.McKinney – McKinney & Russell (2002); = Viola septemloba Leconte var. egglestonii (Brainerd) R.J.Little & L.E.McKinney – Tn; < Viola palmata L. var. pedatifida (G.Don) Cronquist – C

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