Key to the species of Salvia subg. Calosphace sect. Pennellia

1. Perennial herb, branched; stem color purple, leaf blades lanceolate, oblong-lanceolate to oblong-ovate, margin crenate-serrate, lower leaf surface hirtellous, green; lower corolla lip 7–10 mm long ............................................................................... S. pennellii

- Perennial herb, unbranched; stem color tan brown, leaf blades elliptic or oblong-elliptic, margin serrulate, lower leaf surface tomentose, whitish; lower corolla lip 4–8 mm long ...................................................................................................... S. robertoana