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

	leaves obovate to subrotund; NOT [leaves broadly elliptic to oblong], NOT [leaves ovate-lanceolate, acute]
	leaves mostly shorter than the petioles; NOT [leaves mostly longer than the petioles]
	leaves 1-3 cm long; NOT [leaves 3-7 cm long]
	leaf veins not whitish; NOT [main leaf veins whitish], NOT [leaf veins mottled-white above]
	flowers not all on one side of stem; NOT [flowers crowded on one side of the stem (secund)]
	sepals more or less triangular, as wide as long; NOT [sepals oblong to elliptic, much longer than wide]
	petals white or greenish; NOT [petals pink or purplish]
	style conspicuously protruding from flower
	style curved; NOT [style straight]
	style deflexed at base
	style gradually thickened to a truncate collar; NOT [style not thickened upward]

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

	plants with leaves in a basal rosette; NOT [plants with leafy stems]
	flowers several; NOT [flowers solitary]
	inflorescence racemose; NOT [inflorescence corymbose or umbellate]
	raceme NOT secund
	corolla NOT campanulate

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

	shrubs or trees; NOT [herbs]
	plants mostly prostrate; NOT [plants mostly upright]
	plants NOT climbing
	stems not armed with prickles
	plants with normal leaves
	leaves alternate; NOT [leaves opposite]
	leaves simple; NOT [leaves compound]
	plants with leathery green leaves
	NOT [inflorescence terminating the branches, half-round or ovoid]
	flowers with two floral rings, and with each petal distinct from the others
	stamens less than 10; NOT [stamens numerous]
	fruit a dry capsule; NOT [fruit a berry], NOT [fruit a 3-lobed drupe]