Corylus cornuta


Beaked Hazelnut

Male Catkin Cross Section
Looking to Tip

Moosomin Regional Park
23-April-05

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Cornuta:  Answers to key questions in Budd's Flora and Flora of the Great Plains leading to this species.  
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young twigs and petioles glabrous to sparingly villous; NOT [young twigs and petioles usually glandular-pubescent]

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male catkins sessile or subsessile; NOT [male catkins peduncled]

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bracts united and produced into a long beak, completely enclosing the nut, and extending about 3 cm beyond nut; NOT [bracts not much united, barely covering nut]

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nuts enveloped by a bristly, beaked involucre; NOT [nuts subtended by campanulate to somewhat flaring laciniate involucre]

 
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Corylus: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 
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staminate flower solitary in the axil of each catkin bract; NOT [staminate flowers usually three in the axil of each catkin bract]

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pistillate inflorescence capitate; NOT [pistillate inflorescence an ament]

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pistillate flowers few (2-4) in a short, but-like catkin; NOT [pistillate flowers several in an elongated catkin]

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fruit a nut enclosed in a leafy involucre; NOT [fruit a nutlet, often winged, in the axil of a catkin bract]

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involucre NOT inflated

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nut large, acorn like; NOT [nut small, achene-like]

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nuts wingless; NOT [nuts mostly winged]

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

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male flowers, at least, in catkins or aments

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styles 2; NOT 3

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seeds WITHOUT a tuft of hairs

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fruit NOT an acorn