Tetrahit: Answers to key questions from Budd's Flora (BF) leading to this species. corolla tube scarcely longer than the calyx; NOT 2-3 times as long corolla tube 1.5 to 2 cm long; NOT 2-3 cm long corolla tube purple, NOT yellow

 

Galeopsis: Answers to key questions from Budd's Flora (BF) and Flora of Alberta (FOA) leading to this genus. annual weed stems erect or ascending; NOT decumbent; NOT creeping leaves NOT palmately lobed leaves crenate and serrate flowers in axillary clusters calyx indistinctly 2-lipped or regular calyx lobes as long as, or longer than, the tube calyx usually 5-toothed calyx lobes with sharp, spiny, glabrous tips; calyx lobes NOT herbaceous and pubescent to the tip calyx without hooks at tips of lobes calyx 5-10 nerved; NOT 13 or 15-nerved; NOT obscurely nerved calyx without a projection on upper side corolla distinctly 2-lipped anther-bearing stamens 4 upper pair of stamens shorter than the lower pair

 

Labiatae: Answers to key questions from Budd's Flora leading to this family. herbs plants green or with some chlorophyll plants NOT aquatic stems square leaves NOT bearing bladders leaves opposite flowers NOT in heads or spikes flowers with two floral rings, but with the petals wholly or partly united forming a tube or bell corolla irregular ovary superior fruit with 4 nutlets