Pulsatilla patens
 
Crocus

Involucre Abaxial Side

Hudson Bay Regional Park
20-May-2017

This involucre was split and spread out.

This species is known as Anemone patens in Budd's Flora and Flora of Alberta, and that is the classification used in the notes below.

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

basal leaves expanding after flowering; NOT [basal leaves fully expanded  at flowering]

bracts sessile; NOT [bracts short-petioled]

flowers bluish or purplish; NOT [flowers white, sometimes purple-tinged]

sepals 15-40 mm long; NOT [sepals 5-25 mm long]

styles plumose

styles 1.5-3.5 cm long; NOT [styles much shorter]

 

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

plants not woody climbers

leaves not all basal, stem leaves present; NOT [leaves all basal]

cauline leaves whorled, forming a single involucre of leafy bracts some  distance below inflorescence; NOT [cauline leaves alternate]; NOT [cauline leaves opposite]

leaf segments mostly toothed, acute; NOT [leaves 3-lobed, with the lobes entire, rounded]

flowers perfect; NOT [flowers mostly imperfect, the plants dioecious]

flowers regular; NOT [flowers irregular]

flowers not spurred

petals absent, but sepals colored and petal-like, though seldom yellow; NOT [petals usually present]

sepals conspicuous

sepals not greenish

carpels 2 or more; NOT [carpel 1]

ovaries 1-ovuled; NOT [ovaries several-ovuled]

fruit an achene; NOT [fruit a follicle], NOT [fruit a berry]

 

Ranunculaceae: Answers to key questions in Budd's Flora  leading to this family. Not all the answers apply to all members of Ranunculaceae, but they all do apply to genus Anemone.

herbs; NOT [shrubs or trees]

land plants; NOT [water plants]

plants rooted in soil; NOT [plants parasitic on branches of trees]

plants with more than one pair of leaves; NOT [plants stemless with a single pair of large reniform leaves]

leaves alternate, lower ones sometimes opposite; NOT [leaves opposite]

leaves without stipules; NOT [leaves with stipules free or sheathing the stem]

leaves not orbicular or reniform

leaves compound or simple, but very deeply divided; NOT [leaves not compound and not very deeply divided]

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]