Star-worts: The Genus Callitriche
Blue-eyed Marys: The Genus Collinsia
Foxglove, Purple Foxglove: Digitalis purpurea ssp. purpurea (Synonyms: Digitalis purpurea, Digitalis purpurea var. alba, Digitalis purpurea var. gloxiniiflora, Digitalis purpurea var. purpurea, Digitalis purpurea var. tomentosa)
Hedge-hyssops: The Genus Gratiola
Mare's-tails: The Genus Hippuris
Toad-flax: The Genus Linaria
Turtle head, Woodland Beardtongue, Woodland Penstemon: Nothochelone nemorosa (Synonym: Penstemon nemorosus)
Beardtongues and Penstemons: The Genus Penstemon
Prairie Plantain, Slender Plantain: Plantago elongata (Synonyms: Plantago bigelovii, Plantago elongata ssp. elongata, Plantago elongata ssp. pentasperma)
Buckhorn Plantain, English Plantain, Narrowleaf Plantain: Plantago lanceolata (Synonyms: Plantago altissima, Plantago lanceolata var. sphaerostachya)
Broadleaf Plantain, Common Plantain, Great Plantain, Nippleseed: Plantago major (Synonyms: Plantago asiatica, Plantago halophila, Plantago major ssp. intermedia, Plantago major var. asiatica, Plantago major var. intermedia, Plantago major var. major, Plantago major var. pachyphylla, Plantago major var. pilgeri, Plantago major var. scopulorum)
Indian-wheat, Woolly Plantain: Plantago patagonica (Synonyms: Plantago patagonica var. breviscapa, Plantago patagonica var. gnaphalioides, Plantago patagonica var. oblonga, Plantago patagonica var. spinulosa, Plantago picta, Plantago purshii, Plantago purshii var. breviscapa, Plantago purshii var. oblonga, Plantago purshii var. picata, Plantago purshii var. spinulosa, Plantago spinulosa, Plantago wyomingensis)
Sand Plantain: Plantago psyllium (Synonyms: Plantago arenaria, Plantago indica, Plantago scabra)
Tonella: The Genus Tonella
Kittentails and Speedwells: The Genus Veronica (includes the former genus Synthyris)