Helianthus

Helianthus és un gènere de plantes amb flors de la família Asteraceae. Consta de 52 espècies i diverses subespècies totes elles originàries de nord-amèrica.

Espècies

• Helianthus agrestis : Southeastern Sunflower
• Helianthus angustifolius : Swamp Sunflower
• Helianthus annuus : Gira-sol comú
• Helianthus anomalus : Western Sunflower
• Helianthus argophyllus : Silverleaf Sunflower
• Helianthus arizonensis : Arizona Sunflower
• Helianthus atrorubens
• Helianthus bolanderi : Serpentine Sunflower
• Helianthus californicus : California Sunflower
• Helianthus carnosus : Lakeside Sunflower
• Helianthus ciliaris : Texas Blueweed
• Helianthus cinereus
• Helianthus couplandii : Prairie Sunflower
• Helianthus cusickii : Cusick's Sunflower

• Helianthus debilis : Cucumberleaf Sunflower
  • Helianthus debilis ssp. cucumerifolius : Cucumberleaf Sunflower
  • Helianthus debelis ssp. debilis : Beach Sunflower, Dune Sunflower
  • Helianthus debilis ssp. silvestris : Cucumberleaf Sunflower
  • Helianthus debilis ssp. tardiflorus : Cucumberleaf Sunflower
  • Helianthus debilis ssp. vestitus : Cucumberleaf Sunflower
• Helianthus decapetalus : Thinleaf Sunflower
• Helianthus deserticola
• Helianthus divaricatus : Woodland Sunflower
• Helianthus eggertii : Eggert's Sunflower
• Helianthus floridanus : Florida Sunflower
• Helianthus giganteus
• Helianthus glaucophyllus : Whiteleaf Sunflower
• Helianthus gracilentus : Slender Sunflower
• Helianthus grosseserratus: Sawtooth Sunflower
• Helianthus heterophyllus : Variableleaf Sunflower
• Helianthus hirsutus
• Helianthus laciniatus : Alkali Sunflower
• Helianthus laetiflorus
• Helianthus laevigatus : Smooth Sunflower
• Helianthus longifolius : Longleaf Sunflower

• Helianthus maximiliani : Maximillian Sunflower
• Helianthus microcephalus : Small Woodland Sunflower
• Helianthus mollis : Downy Sunflower, Ashy Sunflower
• Helianthus multiflorus
• Helianthus neglectus : Neglected Sunflower
• Helianthus niveus
  • Helianthus niveus ssp. canescens : Showy Sunflower
  • Helianthus niveus ssp. tephrodes : Algodones Sunflower
• Helianthus nuttallii
  • Helianthus nuttallii ssp. nuttallii : Nuttall's Sunflower
  • Helianthus nuttallii ssp. parishii : Parish's Sunflower
  • Helianthus nuttallii ssp. rydbergii : Rydberg's Sunflower
• Helianthus occidentalis : Fewleaf Sunflower
  • Helianthus occidentalis ssp. occidentalis : Fewleaf Sunflower
  • Helianthus occidentalis ssp. plantagineus : Fewleaf Sunflower
• Helianthus paradoxus : Paradox Sunflower
• Helianthus pauciflorus
  • Helianthus pauciflorus ssp. pauciflorus : Stiff Sunflower
  • Helianthus pauciflorus ssp. subrhomboideus : Stiff Sunflower
• Helianthus petiolaris
  • Helianthus petiolaris ssp. fallax : Prairie Sunflower
  • Helianthus petiolaris ssp. petiolaris : Prairie Sunflower
• Helianthus porteri : Porter's Sunflower
• Helianthus praecox
  • Helianthus praecox ssp. hirtus : Texas Sunflower
  • Helianthus praecox ssp. praecox : Texas Sunflower
  • Helianthus praecox ssp. runyonii : Runyon's Sunflower

• Helianthus praetermissus : New Mexico Sunflower
• Helianthus pumilus : Little Sunflower
• Helianthus radula : Rayless Sunflower
• Helianthus resinosus : Resindot Sunflower
• Helianthus salicifolius : Willowleaf Sunflower
• Helianthus schweinitzii : Schweinitz's Sunflower
• Helianthus silphioides : Rosinweed Sunflower
• Helianthus simulans : Muck Sunflower
• Helianthus smithii : Smith's Sunflower
• Helianthus strumosus : Paleleaf Woodland Sunflower
• Helianthus tuberosus : Nyàmera

Referències

Enllaços externs

• «Helianthus in Flora of North America @ efloras.org». on-line version of Flora North America treatment of Helianthus
• See here for a more complete list of species

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