Houstonia longifolia

           
Long-Leaved Bluets

Leaf Top
Moosomin Regional Park
24-June-2005

Note the single central nerve.

Note that the key to the family in Budd's Flora requires "leaves with stipules, appearing whorled".  The leaves of this species do have stipules.  However the stipules do NOT resemble the leaves, and therefore the leaves do NOT appear whorled.  See genus Galium in this family for stipules which do resemble the leaves, creating apparent whorls. 

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

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leaves opposite, in pairs; NOT [leaves apparently whorled]

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stipules NOT resembling the leaves

 
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Solidago: Answers to key questions in Budd's Flora leading to this family.
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herbs; NOT shrubs, NOT trees

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plants green or with some chlorophyll

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NOT climbing plants

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plants WITHOUT milky juice

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leaves with stipules, appearing whorled

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leaves opposite; NOT [basal or alternate]

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flowers NOT in heads or spikes, flowers NOT in a form resembling a head

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flowers with two floral rings, but with the petals wholly or partly united forming a tube or bell

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stamens 4 or 5; NOT 3

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ovary inferior