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Helianthus californicus

Known as: Helianthus californicus DC. 
National Institutes of Health

Papers overview

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2008
2008
An examination of the taxonomic relationships of Helianthus nuttallii T. & G. was undertaken as the second half of a detailed… 
2005
2005
Powdery mildew (PM) (Erysiphe chicoracearum D.C.), a widely distributed pathogen of cultivated sunflower, frequently causes…