Explore 23,508 Species
Nodding Dwarf Sunflower
Helianthella quinquenervis (Hook.) A.Gray
Helianthella quinquenervis, fivenerve helianthella, is a North American herbaceo…
Rocky Mountain Dwarf Sunflower
Helianthella uniflora (Nutt.) Torr. & A.Gray
Helianthella uniflora, or oneflower helianthella, is a North American herbaceous…
White Rock-rose
Helianthemum apenninum (L.) Mill.
Helianthemum apenninum, white rock-rose, is an evergreen semi-woody perennial sh…
Hoary Rockrose
Helianthemum canum (L.) Baumg.
Helianthemum canum is a small flowering plant distinguished by grey-haired leaf …
Common Rock-rose
Helianthemum nummularium (L.) Mill.
Helianthemum nummularium, common rock-rose, is an evergreen trailing flowering p…
narrowleaf sunflower
Helianthus angustifolius L.
Helianthus angustifolius (narrowleaf or swamp sunflower) is a perennial sunflowe…
Common Sunflower
Helianthus annuus L.
Helianthus annuus L. (common sunflower) is a widely cultivated crop with many ed…
Silverleaf Sunflower
Helianthus argophyllus Torr. & A.Gray
Silverleaf sunflower, Helianthus argophyllus, is an annual North American sunflo…
Purpledisk Sunflower
Helianthus atrorubens L.
Helianthus atrorubens, the purpledisc sunflower, is a perennial North American s…
California sunflower
Helianthus californicus DC.
Helianthus californicus is a perennial wild sunflower native to California and n…
Texas blueweed
Helianthus ciliaris DC.
Helianthus ciliaris (Texas blueweed) is a weedy perennial sunflower native to th…
cucumberleaf sunflower
Helianthus debilis Nutt.
Helianthus debilis, the cucumberleaf beach sunflower, is a US-native coastal sun…
pale sunflower
Helianthus decapetalus L.
Helianthus decapetalus is a perennial sunflower species native to North America …
woodland sunflower
Helianthus divaricatus L.
Helianthus divaricatus is a North American perennial sunflower that grows in ope…
giant sunflower
Helianthus giganteus L.
Helianthus giganteus is a tall perennial native North American sunflower, tradit…
slender sunflower
Helianthus gracilentus A.Gray
Helianthus gracilentus, the slender sunflower, is a perennial herb native to wes…
sawtooth sunflower
Helianthus grosseserratus M.Martens
Helianthus grosseserratus (sawtooth sunflower) is a perennial North American sun…
Variableleaf Sunflower
Helianthus heterophyllus Nutt.
Helianthus heterophyllus Nutt. is a perennial North American sunflower that grow…
stiff-hair sunflower
Helianthus hirsutus Raf.
Helianthus hirsutus, the hairy sunflower, is a perennial North American sunflowe…
Maximilian sunflower
Helianthus maximiliani Schrad.
Helianthus maximiliani is a perennial sunflower with chocolate-scented flowers, …
Small Woodland Sunflower
Helianthus microcephalus Torr. & A.Gray
Helianthus microcephalus, the small woodland sunflower, is a North American pere…
ashy sunflower
Helianthus mollis Lam.
Helianthus mollis Lam., also called ashy or downy sunflower, is a perennial Nort…
showy sunflower
Helianthus niveus (Benth.) Brandegee
Helianthus niveus, the showy or snowy sunflower, is an annual or perennial tapro…
Nuttall's Sunflower
Helianthus nuttallii Torr. & A.Gray
Nuttall's sunflower (Helianthus nuttallii) is a North American perennial herb wi…
