Calystegia catesbeiana
Calystegia felix
Catesby's false bindweed
lucky false bindweed, lucky morning-glory
pubescent to tomentose, hairs usually whitish.
glabrous or sparsely hairy.
usually twining-climbing, sometimes proximally erect, distally twining-climbing, to 40–200(–300) cm.
trailing or twining-climbing.
blade elliptic-ovate, to 120 × 50 mm, base lobed, lobes obtuse or rounded, to 20 mm.
blade oblong, oblong-ovate, orbiculate, or ovate, 45–122 × 30–96 mm, base cordate and lobes rounded or base cuneate to ± truncate.
immediately subtending sepals, lanceolate, 12–34 × 10–22 mm, proximally ± keeled, margins ± enfolding sepals, apex acute.
(1–)2–3(–4) mm distant from sepals, narrowly elliptic to oblanceolate, 5–14 × 1–2.5(–3.5) mm, shorter than or equal to sepals, proximally flat, margins entire.
sepals 11–17 mm;
corolla white, 44–64(–70) mm.
sepals lance-ovate to narrowly oblong, outers 8–11 × 2.5–5 mm, inners 11–15 × 3.5–4 mm;
corolla white with yellow or purplish stripes, 27–45 mm.
Calystegia catesbeiana
Calystegia felix
Subspecies 2 (2 in the flora).
Plants of Calystegia catesbeiana, especially subsp. catesbeiana, often have been misidentified as C. sepium because of their climbing habit.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems usually weakly twining-climbing, sometimes proximally erect, to 40(–100) cm; leaf blades to 60 mm, basal lobes obtuse or rounded, to 11 mm, surfaces usually pubescent, abaxial rarely whitish. | subsp. catesbeiana |
1. Stems twining-climbing to 200(–300) cm; leaf blades to 120 mm, basal lobes rounded, 9–20 mm, surfaces densely pubescent to tomentose, abaxial usually whitish. | subsp. sericata |
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