Glabratus: Answers to key questions in Budd's Flora leading to this species. 

	stems mostly creeping; NOT [stems mostly erect]
	calyx distinctly 2-lipped; NOT [calyx regular or nearly so]
	calyx 5-12 mm long; NOT [calyx 12-17 mm long]
	corolla 12-25 mm long; NOT [corolla 5-12 mm long]; NOT [corolla 25-45 mm long]
	flowers yellow; NOT [flowers blue or crimson]

Mimulus: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 

	stems leafy; NOT [leaves in a basal rosette]
	leaves all opposite; NOT [leaves alternate], NOT [upper leaves often whorled]
	leaves simple, neither pinnately lobed nor cleft; NOT [leaves pinnately lobed or cleft]
	leaves lanceolate to ovate or rotund; NOT [leaves narrowly linear, 1-6 mm wide]
	leaves dentate; NOT [leaves entire]
	floral leaves or bracts usually green; NOT [floral leaves or bracts brightly colored, usually red or yellow, or shades of these colours], NOT [upper leaves violet-tinged]
	flowers in the axils of leaves or bracts; NOT [flowers in a terminal spike], NOT [flowers solitary]
	flowers large and showy, 10-35 mm long; NOT [flowers less than 10 mm long]
	calyx 5-lobed; NOT [calyx 4-lobed]
	calyx green; NOT [calyx violet-tinged]
	corolla usually much longer; NOT [corolla 7-14 mm long]
	corolla not spurred at the base
	NOT [corolla green, tinged reddish brown to purple]
	anther-bearing stamens 4
	staminodes absent or inconspicuous

Scrophulariaceae: Answers to key questions in Budd's Flora  leading to this family. 

	herbs; NOT [shrubs or trees]
	plants green or with some chlorophyll; NOT [plants parasitic or saprophytic, without chlorophyll]
	plants not aquatic
	stems not square
	leaves not bearing bladders
	flowers not in heads or spikes; NOT [flowers in long or short spikes], NOT [flowers in heads or in form resembling a head]
	flowers with two floral rings
	corolla irregular; NOT [corolla regular]
	petals wholly or partly united forming a tube or bell]
	ovary superior; NOT [ovary inferior]
	fruit a many-seeded capsule; NOT [fruit with 4 nutlets]