Alberta

Helianthus nuttallii, or Nuttall’s sunflower, is found across northern, central, and western North America. There were three subspecies. Two of these are common, with distributions overlapping at the core of their ranges: Helianthus nuttallii subsp. nuttallii, has a more western distribution while Helianthus nuttallii subsp. rydbergii, extends further into eastern North America. The third subspecies, […]