Fraxinus pennsylvanica
 
Green Ash

Leaf Top

Nicolle Flats at East End of Buffalo Pound Provincial Park
06-June-2014

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Pennsylvanica: Answers to key questions in Budd's Flora leading to this species. 
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body or seed of samara almost circular in cross section; NOT [body or seed of samara flattened]

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wing extending halfway down body of seed; NOT [wing extending to bottom of seed]

 

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

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plants not climbing

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leaves pinnately compound; NOT [leaves simple]

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leaflets mostly 5-11; NOT [leaflets mostly 3-5]

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flowers not in catkins or aments; NOT [male flowers, at least, in catkins or aments]

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flowers with only one floral ring, with sepals but not petals

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fruit without a feathery style; NOT [fruit with a persistent feathery style]

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fruit a single samara; NOT [fruit a double samara]