Pickering’s dawnflower

Convolvulus pickeringii Torrey ex M. A. Curtis, Boston J. Nat. Hist. 1: 129. 1835; Bonamia pickeringii (Torrey ex M. A. Curtis) A. Gray; Breweria pickeringii (Torrey ex M. A. Curtis) A. Gray

Stems procumbent or trailing, sparsely hairy. Leaf blades linear, 25–70 × 0.1–3 mm, sur­faces glabrous or sparsely hairy. Inflorescences 2–5-flowered or flowers solitary; bracteoles 15–25 mm. Flowers: sepals ovate to ovate-lanceolate, 4–6 × 3–5 mm, abaxial surface fulvous or canescent; corolla white, 10–18 mm; stamens: filaments glabrous or proximally puberulent; style branches usually connate (1/2–)5/6+ length, sometimes less.

Varieties 2 (2 in the flora): se United States.

Lower Taxa

• Stylisma pickeringii var. pattersonii (Fernald & B. G. Schubert) Myint
• Stylisma pickeringii var. pickeringii