Calystegia subacaulis |
Calystegia catesbeiana |
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Hill morning glory, hillside false bindweed |
Catesby's false bindweed |
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Habit | Perennials, rhizomatous. | Perennials, rhizomatous. | ||||||||
Herbage | moderately to sparsely hairy, hairs appressed, retrorse, or spreading. |
pubescent to tomentose, hairs usually whitish. |
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Stems | ascending-decumbent, to 20–30 cm or almost absent. |
usually twining-climbing, sometimes proximally erect, distally twining-climbing, to 40–200(–300) cm. |
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Leaves | in basal rosettes or not; blade rounded-deltate to triangular-hastate, 30–40 mm, base usually cuneate, sometimes lobed, lobes retrorse, 1-pointed or rounded, margins not or weakly undulate, apex acuminate, acute, rounded, or subacute. |
blade elliptic-ovate, to 120 × 50 mm, base lobed, lobes obtuse or rounded, to 20 mm. |
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Bracts | immediately subtending sepals, lanceolate, oblong, or broadly ovate, 7–17 × 1.5–9 mm, shorter, or slightly longer, than sepals, proximally usually flat, sometimes keeled, apex usually rounded, sometimes acute. |
immediately subtending sepals, lanceolate, 12–34 × 10–22 mm, proximally ± keeled, margins ± enfolding sepals, apex acute. |
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Flowers | sepals 10–13 mm; corolla white or cream, sometimes pink- to purplish-striped or -tinged, 33–62 mm. |
sepals 11–17 mm; corolla white, 44–64(–70) mm. |
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Calystegia subacaulis |
Calystegia catesbeiana |
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Distribution |
California
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se United States
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
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Key |
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Source | FNA vol. 14. | FNA vol. 14. | ||||||||
Parent taxa | Convolvulaceae > Calystegia | Convolvulaceae > Calystegia | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Convolvulus subacaulis | |||||||||
Name authority | Hooker & Arnott: Bot. Beechey Voy. 363. (1839) | Pursh: Fl. Amer. Sept. 2: 729. (1813) | ||||||||
Web links |