FNA: Ipomoea imperati vs. Ipomoea asarifolia

	Ipomoea imperati	Ipomoea asarifolia
	beach morning-glory	ginger-leaf morning-glory
Habit	Perennials.	Perennials.
Stems	repent, rooting at nodes and underground.	repent, rooting at nodes.
Leaf	blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous.	blades cordate to ± orbiculate, 30–120 × 30–120 mm, base cordate, apex acute to rounded, surfaces glabrous.
Peduncles	glabrous.	glabrous.
Flowers	sepals lance-oblong, 10–15 mm, outers shorter than inners, ± coriaceous, apex acute to obtuse, abaxial surface glabrous; corolla white, throat usually yellow, sometimes purplish inside, funnelform, 25–50 mm.	sepals chartaceous to coriaceous, outers elliptic, 5–9 mm, apex obtuse, inners elliptic or oblong, 10–15 mm, apex obtuse; corolla usually red, rarely white, funnelform, 50–80 mm.
2n	= 30.

	Ipomoea imperati	Ipomoea asarifolia
Phenology	Flowering year-round.	Flowering year-round.
Habitat	Beaches, dunes.	Beaches, moist or swampy sites.
Elevation	0–10 m. (0–0 ft.)	0–100 m. (0–300 ft.)
Distribution	AL; FL; GA; LA; MS; NC; SC; TX; HI; Mexico; Central America; South America; West Indies [Introduced in Europe, Asia, Africa, Australia] [WildflowerSearch map] [BONAP county map]	FL; Mexico; Central America; South America; West Indies (Jamaica) [Introduced in North America] [BONAP county map]
Discussion	Ipomoea imperati was collected once in Pennsylvania (on ballast in 1865). The names I. littoralis (Linnaeus) Boissier 1875, not Blume 1826, and I. stolonifera (Cirillo) J. F. Gmelin are illegitimate; both have been misapplied to plants of I. imperati. (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. 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. 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. 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
Synonyms	Convolvulus imperati	Convolvulus asarifolius
Name authority	(Vahl) Grisebach: Cat. Pl. Cub., 203. (1866)	(Desrousseaux) Roemer & Schultes in J. J. Roemer et al.: Syst. Veg. 4: 251. (1819)
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	WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Ipomoea asarifolia

beach morning-glory

ginger-leaf morning-glory

Habit

Perennials.

Stems

repent, rooting at nodes and underground.

repent, rooting at nodes.

Leaf

blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous.

blades cordate to ± orbiculate, 30–120 × 30–120 mm, base cordate, apex acute to rounded, surfaces glabrous.

Peduncles

glabrous.

Flowers

sepals lance-oblong, 10–15 mm, outers shorter than inners, ± coriaceous, apex acute to obtuse, abaxial surface glabrous;

corolla white, throat usually yellow, sometimes purplish inside, funnelform, 25–50 mm.

sepals chartaceous to coriaceous, outers elliptic, 5–9 mm, apex obtuse, inners elliptic or oblong, 10–15 mm, apex obtuse;

corolla usually red, rarely white, funnelform, 50–80 mm.

= 30.

Ipomoea asarifolia

Phenology

Flowering year-round.

Habitat

Beaches, dunes.

Beaches, moist or swampy sites.

Elevation

0–10 m. (0–0 ft.)

0–100 m. (0–300 ft.)

Distribution

AL; FL; GA; LA; MS; NC; SC; TX; HI; Mexico; Central America; South America; West Indies [Introduced in Europe, Asia, Africa, Australia]

[WildflowerSearch map]

[BONAP county map]

FL; Mexico; Central America; South America; West Indies (Jamaica) [Introduced in North America]

[BONAP county map]

Discussion

Ipomoea imperati was collected once in Pennsylvania (on ballast in 1865). The names I. littoralis (Linnaeus) Boissier 1875, not Blume 1826, and I. stolonifera (Cirillo) J. F. Gmelin are illegitimate; both have been misapplied to plants of I. imperati.

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

Source

FNA vol. 14.

Parent taxa

Convolvulaceae > Ipomoea

Sibling taxa

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. 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. 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

Synonyms

Convolvulus imperati

Convolvulus asarifolius

Name authority

(Vahl) Grisebach: Cat. Pl. Cub., 203. (1866)

(Desrousseaux) Roemer & Schultes in J. J. Roemer et al.: Syst. Veg. 4: 251. (1819)

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).

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Flora of North America species comparison

Ipomoea imperati

Ipomoea asarifolia

Ipomoea imperati

Ipomoea asarifolia