About Symphyotrichum robynsianum (J.Rousseau) Brouillet & Labrecque
Symphyotrichum robynsianum is a perennial herbaceous plant. It has long rhizomes and erect stems that grow 10 to 80 centimetres (4 to 31 inches) tall. Its leaves are stiff and narrow, and they range from slightly toothed to completely untoothed (entire). Flowering occurs between August and September. Flower heads grow either singly or in groups of up to three on leafy branches. The ray florets are dark blue-violet, and the disc florets are yellow.
This species is native to parts of Manitoba, Ontario, Quebec, Michigan, Minnesota, and Wisconsin. It typically grows in moist, open habitats with sand, gravel, or rock, including river and lake shores and alvars. It is most commonly found in calcareous habitats.
