Carolina Doll's Daisy

Populations of Boltonia caroliniana present in eastern South Carolina to southeastern Virginia are atypical in array and leaf dimensions. They are characterized by broad, oblanceolate or obovate leaves subtending the branches of the arrays, stiffly ascending peduncles, and lilac rays; they were described as B. ravenelii. J. T. Morgan (1966) argued that some of the plants collected in Virginia "would key out to B. caroliniana while others from the same population better fit the description of B. ravenelii." Therefore, she placed B. ravenelii in synonymy of B. caroliniana. Detailed studies of these populations and the biology of the species may resolve their taxonomic status.

Plants 40–200 cm; basal offshoots, stolons present or absent. Stems erect to ascending. Leaf blades linear to narrowly oblanceolate or linear-obovate; cauline 76–140 × 18–26 mm, bases not decurrent. Heads in paniculiform arrays, branches spreading to ascending; bracts 7–35 × 1–5 mm. Peduncles 8–58 mm; bracts 1–3, linear to linear-subulate, 1–2 mm. Involucres 2–5 × 3–7 mm. Phyllaries in 2–3 series, linear-subulate, subequal, (0–)1–3(–5) merging down peduncles; outer 1.2–1.6 × 0.2–0.4 mm; inner 1.9–2.2 × 0.3–0.5 mm. Ray florets 25–36; corollas white to lilac, laminae 3–7.5 mm, tubes 0.5–0.7 mm. Disc florets 100–170; corollas 1.7–5 mm. Cypselae obovoid, 1.4–1.6 × 0.8–0.9 mm, wings 0 or 0.01–0.1 mm wide, faces mostly glabrous; pappus awns 0–0.4 mm. 2n = 18.

Chrysanthemum caroliniana Walter, Fl. Carol., 204. 1788; Boltonia ravenelii Fernald & Griscom

Boltonia caroliniana, common name Carolina doll's-daisy, is a North American species of plants in the family Asteraceae. It is found only in the southeastern United States, primarily in the states of North Carolina, South Carolina, and Virginia with a few isolated populations in western Georgia.

Boltonia caroliniana is a perennial herb up to 200 cm (80 inches) tall. It has many daisy-like flower heads with white or lilac ray florets and yellow disc florets.