FNA: Ipomoea imperati vs. Ipomoea microdactyla

	Ipomoea imperati	Ipomoea microdactyla
	beach morning-glory	calcareous morning-glory
Habit	Perennials.	Perennials, root relatively large, tuberlike.
Stems	repent, rooting at nodes and underground.	trailing, twining, sometimes ± fleshy.
Leaf	blades lanceolate, linear, oblong, ovate, or 3–5-lobed, 15–80 × 12–60 mm, base cordate to truncate, surfaces glabrous.	blades elliptic or lanceolate, 30–100 × 10–40 mm overall, base cordate to truncate, surfaces glabrous, or ± orbiculate, (3–)5–7-lobed, incised nearly to petiole tip, lobes narrowly elliptic, linear, or oblong, 20–40 × 3–10 mm.
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.	diurnal; sepals oblong, orbiculate, or ovate, 6–7 mm, coriaceous, margins sometimes scarious, apex obtuse, sometimes mucronulate; corolla red, salverform, (25–)40–50 mm, limb 25–30 mm diam., weakly 5-lobed or notably 5-lobed in age.
2n	= 30.

	Ipomoea imperati	Ipomoea microdactyla
Phenology	Flowering year-round.	Flowering year-round.
Habitat	Beaches, dunes.	Coppices, oölitic sites, open fields, pinelands.
Elevation	0–10 m. (0–0 ft.)	0–20 m. (0–100 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; West Indies (Bahamas, Cuba) [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. 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. 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	Exogonium microdactylum
Name authority	(Vahl) Grisebach: Cat. Pl. Cub., 203. (1866)	Grisebach: Cat. Pl. Cub., 204. (1866)
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 microdactyla

beach morning-glory

calcareous morning-glory

Habit

Perennials.

Perennials, root relatively large, tuberlike.

Stems

repent, rooting at nodes and underground.

trailing, twining, sometimes ± fleshy.

Leaf

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

blades elliptic or lanceolate, 30–100 × 10–40 mm overall, base cordate to truncate, surfaces glabrous, or ± orbiculate, (3–)5–7-lobed, incised nearly to petiole tip, lobes narrowly elliptic, linear, or oblong, 20–40 × 3–10 mm.

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.

diurnal;

sepals oblong, orbiculate, or ovate, 6–7 mm, coriaceous, margins sometimes scarious, apex obtuse, sometimes mucronulate;

corolla red, salverform, (25–)40–50 mm, limb 25–30 mm diam., weakly 5-lobed or notably 5-lobed in age.

= 30.

Ipomoea imperati

Ipomoea microdactyla

Phenology

Flowering year-round.

Habitat

Beaches, dunes.

Coppices, oölitic sites, open fields, pinelands.

Elevation

0–10 m. (0–0 ft.)

0–20 m. (0–100 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; West Indies (Bahamas, Cuba)

[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. 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. 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

Exogonium microdactylum

Name authority

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

Grisebach: Cat. Pl. Cub., 204. (1866)

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 microdactyla

Ipomoea imperati

Ipomoea microdactyla