FNA: Ipomoea alba vs. Ipomoea wrightii

	Ipomoea alba	Ipomoea wrightii
	moon flower, tropical white morning-glory	palmleaf morningglory, Wright's morning-glory
Habit	Perennials.	Annuals.
Stems	twining, usually prickly, sometimes rooting at nodes.	usually twining, sometimes trailing.
Leaf	blades broadly ovate to triangular or 3–5-lobed, 50–150 × 50–150 mm, base cordate, surfaces usually glabrous, rarely hairy.	blades ± pentagonal, 30–80 × 20–80 mm overall, palmatisect, lobes 5, lance-linear to lanceolate, (21–)35–50(–80) × (5–)10–15(–20) mm, apex acute, surfaces glabrous.
Peduncles	glabrous.	usually spiraled, 50–100 mm, glabrous.
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 ovate, 5–7 mm, chartaceous or coriaceous, apex obtuse to rounded, abaxial surface glabrous; corolla red, rosy, throat red-violet, funnelform, 18–30 mm.
Fruits	20–30 mm.
2n	= 30.

	Ipomoea alba	Ipomoea wrightii
Phenology	Flowering Sep–May.	Flowering Jul–Oct.
Habitat	Forest margins, swamps, moist sites.	Disturbed sites, fields, marshy sites.
Elevation	0–100 m. (0–300 ft.)	0–600 m. (0–2000 ft.)
Distribution	FL; LA; SC; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia] [WildflowerSearch map] [BONAP county map]	AL; AR; FL; GA; LA; MS; OK; TN; TX; Asia [Introduced in North America; introduced also in Mexico, West Indies, Central America, South America (Argentina, Brazil, Ecuador, Paraguay, Peru), Africa, Australia] [WildflowerSearch map] [BONAP county map]
Discussion		Ipomoea wrightii may be spread as a contaminant in seeds. The names Ipomoea heptaphylla (Roxburg) Voigt and I. pulchella Roth have been misapplied to plants of I. wrightii. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 14.	FNA vol. 14.
Parent taxa	Convolvulaceae > Ipomoea	Convolvulaceae > Ipomoea
Sibling taxa	I. amnicola, I. aquatica, I. asarifolia, I. barbatisepala, I. batatas, I. cairica, I. capillacea, I. cardiophylla, I. carnea, I. coccinea, I. cordatotriloba, I. costellata, I. cristulata, I. dumetorum, I. hederacea, I. hederifolia, I. imperati, I. indica, I. lacunosa, I. leptophylla, I. lindheimeri, I. longifolia, I. macrorhiza, I. microdactyla, I. muricata, I. nil, I. pandurata, I. pes-caprae, I. plummerae, I. pubescens, I. purpurea, I. quamoclit, I. rupicola, I. sagittata, I. setosa, I. shumardiana, I. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. wrightii, I. ×leucantha	I. alba, I. amnicola, I. aquatica, I. asarifolia, I. barbatisepala, I. batatas, I. cairica, I. capillacea, I. cardiophylla, I. carnea, I. coccinea, I. cordatotriloba, I. costellata, I. cristulata, I. dumetorum, I. hederacea, I. hederifolia, I. imperati, I. indica, I. lacunosa, I. leptophylla, I. lindheimeri, I. longifolia, I. macrorhiza, I. microdactyla, I. muricata, I. nil, I. pandurata, I. pes-caprae, I. plummerae, I. pubescens, I. purpurea, I. quamoclit, I. rupicola, I. sagittata, I. setosa, I. shumardiana, I. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. ×leucantha
Synonyms	Calonyction aculeatum, Convolvulus aculeatus
Name authority	Linnaeus: Sp. Pl. 1: 161. (1753)	A. Gray in A. Gray et al.: Syn. Fl. N. Amer. 2(1): 213. (1878)
Web links	Local Web sites: LA Plants WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local Web sites: LA Plants WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Ipomoea wrightii

moon flower, tropical white morning-glory

palmleaf morningglory, Wright's morning-glory

Habit

Perennials.

Annuals.

Stems

twining, usually prickly, sometimes rooting at nodes.

usually twining, sometimes trailing.

Leaf

blades broadly ovate to triangular or 3–5-lobed, 50–150 × 50–150 mm, base cordate, surfaces usually glabrous, rarely hairy.

blades ± pentagonal, 30–80 × 20–80 mm overall, palmatisect, lobes 5, lance-linear to lanceolate, (21–)35–50(–80) × (5–)10–15(–20) mm, apex acute, surfaces glabrous.

Peduncles

glabrous.

usually spiraled, 50–100 mm, glabrous.

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 ovate, 5–7 mm, chartaceous or coriaceous, apex obtuse to rounded, abaxial surface glabrous;

corolla red, rosy, throat red-violet, funnelform, 18–30 mm.

Fruits

20–30 mm.

= 30.

Ipomoea wrightii

Phenology

Flowering Sep–May.

Flowering Jul–Oct.

Habitat

Forest margins, swamps, moist sites.

Disturbed sites, fields, marshy sites.

Elevation

0–100 m. (0–300 ft.)

0–600 m. (0–2000 ft.)

Distribution

FL; LA; SC; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia]

[WildflowerSearch map]

[BONAP county map]

AL; AR; FL; GA; LA; MS; OK; TN; TX; Asia [Introduced in North America; introduced also in Mexico, West Indies, Central America, South America (Argentina, Brazil, Ecuador, Paraguay, Peru), Africa, Australia]

[WildflowerSearch map]

[BONAP county map]

Discussion

Ipomoea wrightii may be spread as a contaminant in seeds.

The names Ipomoea heptaphylla (Roxburg) Voigt and I. pulchella Roth have been misapplied to plants of I. wrightii.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source

FNA vol. 14.

Parent taxa

Convolvulaceae > Ipomoea

Sibling taxa

I. amnicola, I. aquatica, I. asarifolia, I. barbatisepala, I. batatas, I. cairica, I. capillacea, I. cardiophylla, I. carnea, I. coccinea, I. cordatotriloba, I. costellata, I. cristulata, I. dumetorum, I. hederacea, I. hederifolia, I. imperati, I. indica, I. lacunosa, I. leptophylla, I. lindheimeri, I. longifolia, I. macrorhiza, I. microdactyla, I. muricata, I. nil, I. pandurata, I. pes-caprae, I. plummerae, I. pubescens, I. purpurea, I. quamoclit, I. rupicola, I. sagittata, I. setosa, I. shumardiana, I. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. wrightii, I. ×leucantha

I. alba, I. amnicola, I. aquatica, I. asarifolia, I. barbatisepala, I. batatas, I. cairica, I. capillacea, I. cardiophylla, I. carnea, I. coccinea, I. cordatotriloba, I. costellata, I. cristulata, I. dumetorum, I. hederacea, I. hederifolia, I. imperati, I. indica, I. lacunosa, I. leptophylla, I. lindheimeri, I. longifolia, I. macrorhiza, I. microdactyla, I. muricata, I. nil, I. pandurata, I. pes-caprae, I. plummerae, I. pubescens, I. purpurea, I. quamoclit, I. rupicola, I. sagittata, I. setosa, I. shumardiana, I. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. ×leucantha

Synonyms

Calonyction aculeatum, Convolvulus aculeatus

Name authority

Linnaeus: Sp. Pl. 1: 161. (1753)

A. Gray in A. Gray et al.: Syn. Fl. N. Amer. 2(1): 213. (1878)

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

Choose a data source: Flora of North America

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Flora of North America species comparison

Ipomoea alba

Ipomoea wrightii

Ipomoea alba

Ipomoea wrightii