Common Cryptantha, Quill Cat's-eye, Quill Cryptantha, Slender Cryptantha: Cryptantha affinis (Synonym: Krynitzkia affinis) -
Clearwater Cryptantha, Clearwater Cat's Eye, Common Cryptantha, Large-flowered Cryptantha: Cryptantha intermedia var. hendersonii (Synonyms: Cryptantha barbigera var. fergusoniae, Cryptantha fragilis, Cryptantha grandiflora, Cryptantha hendersonii, Cryptantha intermedia var. grandiflora, Cryptantha intermedia var. intermedia) -
Pinewoods Cryptantha, Pinewoods Cat's Eye: Cryptantha simulans -