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Asteraceae
Helianthus
Helianthus praecox
Helianthus praecox
No common name
Engelm. & A.Gray 1845 -
Boston J. Nat. Hist. 5: 221 (1845)
Specifications
Images
Synonyms
Helianthus debilis subsp. praecox
(Engelm. & A.Gray) Heiser
Helianthus cucumerifolius var. praecox
(Engelm. & A.Gray) A.Gray