Richardsonii:  Answers to key questions in Budd's Flora (BF) and Flora of Alberta (FOA) leading to this species.  Note that Budd's Flora states that the calyx is 5-12 mm long.  This is only true if you include the hypanthium. Note that Flora of the Great Plains states that both stamens and styles can be included to exserted.  flowers large hypanthium strongly oblique (FOA) hypanthium together with the sepals 8-10 mm long (FOA) calyx strongly oblique (BF) calyx 5-12 mm long; NOT 2-4 mm long (BF) petals purplish; NOT whitish or yellowish stamens slightly exceeding the sepals (BF, FOA)

 

Heuchera: Answers to key questions from Budd's Flora and Flora of Alberta leading to this genus. herbs rootstock elongated, scaly; NOT corm-like, NOT bulblet-bearing leaves, if in a basal rosette, toothed or lobed usually more than one flower inflorescence a spike-like panicle; NOT a raceme petals present petals entire sterile stamens NOT present 5 stamens 2 styles ovary 1-loculed, with 2 parietal placentae

Saxifragaceae: Answers to key questions from Budd's Flora leading to this family.  Note that Budd's Flora states that the calyx is regular.  In fact, the calyx is irregular in this species. herbs plants terrestrial or semi-aquatic plants NOT with coloured milky juice plants with more than one normal leaf some or all leaves alternate leaves without stipules, or having glands flowers with two floral rings, and with each petal distinct from the others receptacle cup-shaped calyx regular corolla regular in shape 5 petals 5 stamens ovary superior 2 carpels