Symphyotrichum rhiannon

Rhiannon's Aster

Symphyotrichum rhiannon Weakley & Govus is very rare on ultramaphic serpentine outcrops in Clay Co., North Carolina (Brouillet et al. 2006; FNA). Leaves are oblong-lanceolate, winged-petiolate, clasping to subclasping, shallowly auriculate, and the rays are blue to lavender. The species is hexaploid 2n=48.

Symphyotrichum rhiannon is of conservation concern.

Symphyotrichum rhiannon range JCS
Symphyotrichum rhiannon 11581 NC
Symphyotrichum rhiannon lvs 11581 NC
Symphyotrichum rhiannon lvs 11581 NC
Symphyotrichum rhiannon hds 11581 NC
Symphyotrichum rhiannon invol 11581 NC

1-x. Symphyotrichum rhiannon, Semple 11581, Clay Co., North Carolina. 1-2. Shoots. 3. Leaves. 4. heads. 5. Involucre and florets. 

Last updated 31 March 2025 by J.C. Semple

© 2025 J.C. Semple, including all photographs unless otherwise indicate