Helianthus maximiliani, Leaf. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Fasciated and normal capitula. Family Asteraceae, Subclass Asteridae. Origin: Na...
Helianthus debilis subsp. cucumerifolius , Capitulum from above. Family Asteraceae, Subclass Asterid...
Helianthus mollis , Capitulum past anthesis, disk florets. Family Asteraceae, Subclass Asteridae. Or...
Helianthus mollis , Leaves. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Phyllaries. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence - small. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence - large. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence section 2. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Phyllaries. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Inflorescences. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence section 1. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence section 2 - close. Family Asteraceae, Subclass Asteridae. Origin:...
Helianthus hirsutus, Inflorescence from top - close. Family Asteraceae, Subclass Asteridae. Origin: ...
Helianthus debilis subsp. vestitus , Inflorescence from above. Family Asteraceae, Subclass Asterid...
Helianthus hirsutus, Population. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Fasciated and normal capitula. Family Asteraceae, Subclass Asteridae. Origin: Na...
Helianthus debilis subsp. cucumerifolius , Capitulum from above. Family Asteraceae, Subclass Asterid...
Helianthus mollis , Capitulum past anthesis, disk florets. Family Asteraceae, Subclass Asteridae. Or...
Helianthus mollis , Leaves. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Phyllaries. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence - small. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence - large. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence section 2. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Phyllaries. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Inflorescences. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence section 1. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus hirsutus, Inflorescence section 2 - close. Family Asteraceae, Subclass Asteridae. Origin:...
Helianthus hirsutus, Inflorescence from top - close. Family Asteraceae, Subclass Asteridae. Origin: ...
Helianthus debilis subsp. vestitus , Inflorescence from above. Family Asteraceae, Subclass Asterid...
Helianthus hirsutus, Population. Family Asteraceae, Subclass Asteridae. Origin: Native
Helianthus mollis , Fasciated and normal capitula. Family Asteraceae, Subclass Asteridae. Origin: Na...
Helianthus debilis subsp. cucumerifolius , Capitulum from above. Family Asteraceae, Subclass Asterid...
Helianthus mollis , Capitulum past anthesis, disk florets. Family Asteraceae, Subclass Asteridae. Or...