Viola adunca
 
Early Blue Violet

Flower Cut Open

Good Spirit Lake Provincial Park
19-May-2012

All of the corolla except the spur of the anterior petal have been removed from this flower.  That spur has been cut open to reveal the nectaries which it encloses.

bullet

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

plants perennial; NOT [plants annual]

bullet

plants with well-developed leafy stems; NOT [plants lacking stems, the leaves and peduncles arising from a caudex or stolons]

bullet

stipules bract-like, much smaller than the leaf blades; NOT [stipules leaf-like, large, about the same length as the leaf blades]

bullet

stipules toothed; NOT [stipules entire], NOT [stipules laciniate at base]

bullet

flowers axillary

bullet

flowers deep violet to purple to whitish blue; NOT [flowers white to pale violet to mauve], NOT [flowers yellow]

 

bullet

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

herbs; NOT [shrubs or trees]

bullet

plants terrestrial or semiaquatic; NOT [plants aquatic, leaves submerged or floating]

bullet

plants NOT with colored milky juice

bullet

plants with more than one normal leaf

bullet

some or all leaves alternate; NOT [leaves opposite, whorled or basal]

bullet

leaves with stipules; NOT [leaves without stipules, or having glands]

bullet

flowers with two floral rings, and with each petal distinct from the others

bullet

flowers irregular in shape; NOT [flowers regular in shape]

bullet

calyx regular; NOT [calyx irregular, some sepals smaller than others]

bullet

corolla with one petal spurred or sac-like; NOT [corolla pea-like]

bullet

stamens usually separate or partly so, not in a column; NOT [stamens numerous, united into a column]

bullet

fruit a 3-valved capsule; NOT [fruit a legume]