Asper:  Answers to key questions in Budd's Flora and Flora of Alberta leading to this species.   plant tuber-bearing lower and middle leaves sessile; NOT with petioles or narrow bases leaves toothed but not deeply incised calyx lobes 1-2 mm long or longer; NOT less than 1 mm long calyx lobes narrowly lanceolate; NOT deltoid or broadly lanceolate calyx lobes with subulate tips; NOT blunt or acutish calyx lobes at maturity surpassing the nutlets nutlets with the upper outer margin truncate and often undulate; NOT with upper outer margin well rounded and entire

 

Lycopus: Answers to key questions from Budd's Flora and Flora of Alberta leading to this genus. tall perennials of moist places leaves crenate to serrate; leaves NOT palmately lobed inflorescences axillary, NOT terminal, NOT in spikes or head-like clusters flowers in axillary clusters, NOT solitary, NOT in axillary racemes flowers sessile calyx indistinctly 2-lipped or regular calyx without hooks at tips of lobes corolla 4- or 5-lobed, hardly, if at all, 2-lipped (BF) corolla with 4 nearly equal lobes (FOA) corolla white 2 anther-bearing stamens

 

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