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Home / Asteraceae / Helianthus / Helianthus pauciflorus subsp. pauciflorus

Helianthus pauciflorus subsp. pauciflorus

Rigid Sunflower, Stiff Sunflower
Also known as: Harpalium rigidum (Desf.) Cass. ex DC. +10 more
  • Harpalium rigidum (Desf.) Cass. ex DC.
  • Helianthus ×laetiflorus f. rigidus (Cass.) B.Boivin
  • Helianthus ×laetiflorus var. rigidus (Cass.) Fernald
  • Helianthus asper Bosse
  • Helianthus crassifolius Nutt.
  • Helianthus diffusus Sims
  • Helianthus diffusus var. diffusus
  • Helianthus diffusus var. missouriensis (Schwein. ex Nutt.) Appleton
  • Helianthus missouriensis Schwein. ex Nutt.
  • Helianthus pedunculatus Link
  • Helianthus rigidus (Cass.) Desf.
Botanical Data
  • Taxonomic Rank: Subspecies
  • Botanical Family: Asteraceae
  • WCVP Morphological Data: Recorded natively as a perennial.

Helianthus pauciflorus subsp. pauciflorus (commonly known as Rigid Sunflower or Stiff Sunflower) is a herbaceous perennial within the Asteraceae family. It is found natively in North America. Within its native range, this subspecies is primarily associated with temperate conditions. It is a naturally occurring subspecies of Helianthus pauciflorus, which is linked below, along with other subspecies of this species.

Macro Climate
Temperate
Plant Type
Herbaceous Perennial

Native Range

Continents (WGSRPD)
NORTHERN AMERICA
Regions (WGSRPD)
Eastern Canada, North-Central U.S.A., Northeastern U.S.A., Northwestern U.S.A., South-Central U.S.A., Southeastern U.S.A., Western Canada
Botanical Countries (WGSRPD L3)
Alberta, Arkansas, British Columbia, Connecticut, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Manitoba, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Hampshire, New Jersey, North Dakota, Oklahoma, Ontario, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Texas, Vermont, Virginia, Wisconsin

Introduced Range

Plants flagged as 'Introduced' have been transported outside their native historical range by human activity. While many are common ornamentals, some may become naturalized or invasive in local environments. Local ecological guidelines require verification prior to planting.
Botanical Countries (Non-Native)
Amur, Austria, Baltic States, Czechoslovakia, France, Germany, Hungary, Italy, Khabarovsk, Maryland, Norway, Primorye, Sardegna, Sicilia, Ukraine, Yugoslavia
Base Species & Variations

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