Iowense: Answers to key questions in Flora of Alberta leading to this species. 

	central flowers 3-5 mm broad; NOT [central flowers 2-3 mm broad]
	sepals spreading; NOT [sepals erect]
	outer pair of sepals wider; NOT [sepals of about equal size]
	sepals golden-yellow; NOT [sepals green]
	stamens 2-8; NOT [stamens 4]

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

	herbs; NOT [shrubs]
	low plants
	leaves and flowers clustered at tip of stem; NOT [flowers in terminal cymes]
	leaves reniform; NOT [leaves lanceolate]
	leaves crenate; NOT [leaves serrate]
	petals absent; NOT [petals generally present]
	sepals 4; NOT [sepals 5]
	stamens 2-8, mostly 4-7; NOT [stamens 5 or 10]

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

	herbs; NOT [shrubs or trees]
	land plants; NOT [water plants]
	plants not parasitic on trees, rooted in soil or water; NOT [plants parasitic on branches of trees, leaves reduced to scales]
	plants with stems or stemless, but with more than one pair of leaves; NOT [plants stemless with a single pair of large reniform leaves, calyx 3-lobed]
	leaves alternate, lower ones sometimes opposite; NOT [leaves opposite]
	leaves without stipules; NOT [leaves with stipules free or sheathing the stem]
	leaves orbicular or reniform
	flowers with only one floral ring, with sepals but not petals
	sepals 4
	stamens and pistils in each flower; NOT [stamens or pistils in separate flowers on the same plant]
	fruit dry when ripe; NOT [fruit fleshy when ripe]