Phlox alyssifolia
 
Blue Phlox

Leaf Bottom

Hole in the Wall, North of Big Muddy Lake
16-May-2019

The leaf margins are thickened and conspicuously ciliate proximally.  However, the leaves are not cobwebby.

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Alyssifolia: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species. 
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stem decumbent or tufted; NOT [stem erect]

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leaves linear to oblong; NOT [leaves awl-shaped]

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leaves 2-4 mm wide; NOT [leaves less than 2 mm wide]

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leaves mostly without cobwebby hairs but ciliate on margins; NOT [leaves with cobwebby hairs]

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tube of corolla much longer than calyx; NOT [tube of corolla slightly longer than calyx]

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tube of corolla more than 12 mm long

 
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Phlox: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 
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plants perennial; NOT [plants annual]

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plants forming dense tufts or mats

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leaves mostly opposite

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leaves simple, entire


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Polemoniaceae: Answers to key questions in Budd's Flora leading to this family. 
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herbs; NOT [shrubs or trees]

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plants green or with some chlorophyll; NOT [plants parasitic or saprophytic, without chlorophyll]

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plants without milky juice

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plants not twining

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corolla regular; NOT [corolla irregular]

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stamens alternating with corolla lobes, or twice their number; NOT [stamens directly in front of corolla lobes]

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stamens 4 or 5; NOT [stamens 8 or 10]

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style terminal; NOT [style from center of lobes of ovary]

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ovary superior; NOT [ovary inferior]

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ovary 3-celled; NOT [ovary 2-celled], NOT [ovary 1-celled]

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ovary with seeds born on axis in center of cell; NOT [ovary with seeds borne on wall of cell]

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fruit a capsule; NOT [fruit a berry], NOT [fruit with 4 nutlets]