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11. Calystegia atriplicifolia Hallier f., Bull. Herb. Boissier. 5: 385, plate 13, fig. 2. 1897.
[E]
Perennials, rhizomatous. Herbage glabrous. Stems ascending-decumbent, erect, suberect, or trailing, to 10–50 cm or almost absent. Leaves: blade rounded-deltate or triangular-hastate, 20–40(–60) mm wide, base cuneate or lobed, lobes at right angles to midrib or slightly retrorse, apex acute to obtuse. Bracts immediately subtending sepals, elliptic, ovate, or suborbiculate, 8–19 × 3–18 mm, proximally flat or saccate, scarcely to closely enfolding sepals, apex acute, emarginate, obtuse, or rounded. Flowers: sepals 10–15 mm; corolla white, sometimes pink or purple-striped, 31–73 mm.
Subspecies 2 (2 in flora): w United States.
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Stems usually suberect or trailing, to 35 cm, sometimes almost absent; leaf blades mostly 40–60 mm wide; bracts 14–19 × 9–18 mm, proximally saccate, apex emarginate to rounded; corollas 40–73 mm |
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11a Calystegia atriplicifolia subsp. atriplicifolia |
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Stems ascending-decumbent to erect, 10–50 cm; leaf blades mostly 20–40 mm wide; bracts 8–12 × 3–9 mm, proximally flat, apex acute to obtuse; corollas 31–44 mm |
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11b Calystegia atriplicifolia subsp. buttensis |
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Lower Taxa
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