About Symphyotrichum chapmanii (Torr. & A.Gray) Semple & Brouillet
Common Name and Taxon Type
Commonly called savanna aster, Symphyotrichum chapmanii is a perennial herbaceous plant.
Root System and Stem Characteristics
It grows from a cespitose root system with rhizomes, and typically reaches 30–80 cm (12–31 in) in height, producing one to three hairless stems.
Involucre and Phyllary Traits
Its flower heads feature cylinder-bell shaped involucres, which hold 4–6 rows of green phyllaries with purple tips.
Bloom Period
The plant blooms from September through December.
Floret Characteristics
Each flower head contains 8–23 purple to pale bluish-purple ray florets that measure 10–20 mm (0.4–0.8 in) long, which surround 47–57 pale yellow disk florets.