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.
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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
An “Introduced” distribution indicates that the plant is recorded outside its native range in that region as a result of deliberate or accidental human introduction. Introduced records may include casual, naturalized or invasive populations, but do not include plants that are only cultivated or planted without self-sustaining populations.
Botanical Countries (Non-Native)
Amur, Austria, Baltic States, Czechoslovakia, France, Germany, Hungary, Italy, Khabarovsk, Maryland, Norway, Primorye, Sardegna, Sicilia, Ukraine, Yugoslavia
Base Species & Variations