USA NPN National Phenology Network

Taking the Pulse of Our Planet

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Sunflower Phenology Observations Collected by Great Sunflower Project Participants, 2009

Abstract: 
These data are phenology observations of sunflower (Helianthus annuus) taken by members of the Great Sunflower Project. Observation protocol details. For more information, please visit www.greatsunflower.org.
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Access: 
Freely available
Time period
Start year: 
2009
End year: 
2009
Taxonomy
Groups: 
Flowering Plants
Phenophases
Phenophases: 
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Published: 
1