Ipomoea alba |
Ipomoea purpurea |
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moon flower, tropical white morning-glory |
common morning-glory, tall morning-glory |
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Habit | Perennials. | Annuals. |
Stems | twining, usually prickly, sometimes rooting at nodes. |
twining. |
Leaf | blades broadly ovate to triangular or 3–5-lobed, 50–150 × 50–150 mm, base cordate, surfaces usually glabrous, rarely hairy. |
blades cordate, ovate, or 3(–5)-lobed, not palmatisect, 10–110(–180) × 10–120(–160) mm, base cordate, surfaces ± hairy, hairs ± antrorse. |
Peduncles | glabrous. |
hairy, hairs retrorse. |
Flowers | nocturnal; sepals ovate, 7–15 mm, ± coriaceous, apex acute, outers each with midrib extending as ± corniform appendage; corolla white, throat green-banded inside, salverform, 70–150 mm. |
sepals elliptic, lance-oblong, or oblong, 8–15 × (1.5–)2.5–4.5 mm, herbaceous, base ± hairy, hairs dark at base, narrowed distal portion shorter to slightly longer than dilated base, apex acute to abruptly acuminate; corolla blue (purple, red, or white in cultivars), tube white inside, funnelform, (25–)40–60 mm, limb 24–48(–70) mm diam. 2n = 30. |
Fruits | 20–30 mm. |
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2n | = 30. |
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Ipomoea alba |
Ipomoea purpurea |
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Phenology | Flowering Sep–May. | Flowering Jul–Nov. |
Habitat | Forest margins, swamps, moist sites. | Abandoned plantings, canyons, disturbed sites, fields, stream banks. |
Elevation | 0–100 m. (0–300 ft.) | 100–2300 m. (300–7500 ft.) |
Distribution |
FL; LA; SC; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia]
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AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WV; ON; QC; Mexico [Introduced in North America; introduced also in West Indies, Central America, South America, Eurasia, Africa, Australia]
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Discussion | In the flora area, Ipomoea purpurea may be native in southeastern United States and introduced elsewhere. Populations in California, Oregon, and Washington may not be truly naturalized. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Convolvulaceae > Ipomoea | Convolvulaceae > Ipomoea |
Sibling taxa | ||
Synonyms | Calonyction aculeatum, Convolvulus aculeatus | Convolvulus purpureus, I. purpurea var. diversifolia, Pharbitis purpurea |
Name authority | Linnaeus: Sp. Pl. 1: 161. (1753) | (Linnaeus) Roth: Bot. Abh. Beobacht., 27. (1787) |
Web links |
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