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

	shrubs or small trees; NOT [low, trailing everygreen shrub]
	leaves simple, at most deeply lobed; NOT [leaves pinnately compound]
	leaves with finely toothed margins; NOT [leaves with entire or wavy margins]
	inflorescence axillary as well as terminal; NOT [inflorescence all terminal in compound cymes]
	calyx with 5 linear lobes; NOT [calyx with short lobes]
	corolla tubular or bell-shaped; NOT [corolla rotate]
	flowers with 5 stamens; NOT [flowers with 4 stamens]
	fruit a capsule with 2 or more seeds; NOT [fruit a berry]; NOT [fruit a drupe containing a flattened stone]

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

	shrubs; NOT [herbs], NOT [trees]
	large shrubs; NOT [dwarf shrubs]
	leaves opposite or whorled; NOT [leaves alternate]
	stems bearing few to several flowers; NOT [stems bearing a solitary flower]
	stamens 5; NOT [stamens 5-10], NOT [stamens 2]
	ovary inferior; NOT [ovary superior]
	fruit fleshy; NOT [fruit a capsule]