Heuchera missouriensis Rosendahl. Section: Holochloa. Subsection: Villosae. Missouri Alumroot, Interior Low Plateau Grotto Alumroot. Phen: Jul-Sep. Hab: Shaded cliff bases, usually under overhangs, on grotto floors, nearly always in deeply shaded situations where little or no direct sunlight falls. Dist: S. IN and s. IL south through Cumberland TN to n. AL and ne. MS (Tishomingo County).
Origin/Endemic status: Endemic
Taxonomy Comments: See Folk & Freudenstein (2014, 2015) for discussion of this species.
Synonymy: = K4, Folk & Freudenstein (2015); < Heuchera parviflora Bartl. – Tn; < Heuchera parviflora Bartl. var. parviflora – C, FNA8, K1, K3, Wells (1984); < Heuchera parviflora Bartl. var. rugelii (Shuttlew.) Rosend., Butters, & Lakela – F, G, Il, Rosendahl, Butters, & Lakela (1936); < Heuchera puberula Mack. & Bush – S, S13
Heliophily: 1
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