FNA: Ipomoea cairica vs. Ipomoea shumardiana

	Ipomoea cairica	Ipomoea shumardiana
	cairo morning glory, mile-a-minute vine	narrow-leaf morning glory
Habit	Perennials.	Perennials.
Stems	usually twining, sometimes trailing.	trailing or twining.
Leaf	blades orbiculate to ovate, 30–100 × 30–100 mm overall, palmatisect, lobes 5 (proximal 2 sometimes 2-lobed), lance-elliptic, lanceolate, or lance-ovate, (5–)10–25(–70) × (3–)8–15(–30) mm, apex acute to obtuse, surfaces glabrous.	blades deltate-ovate or narrowly lance-ovate, 30–80 × 10–40 mm, base cordate to truncate, surfaces glabrous.
Peduncles	glabrous; pedicels straight, 10–25 mm.	glabrous.
Flowers	sepals oblong to ovate, 4–6.5(–9) mm, outers slightly shorter than inners, chartaceous, margins scarious, apex obtuse to acute; corolla lavender-blue or white, throat purplish-red, funnelform, 45–60 mm.	sepals not dotted with dark spots, elliptic, oblong, or orbiculate, 10–15 mm, outers shorter than inners, coriaceous, surfaces glabrous; corolla pink or white, throat purple or red inside, funnelform, 50–80 mm, limb 50–80 mm diam.
2n	= 30.

	Ipomoea cairica	Ipomoea shumardiana
Phenology	Flowering Mar–Oct.	Flowering Jun–Aug.
Habitat	Abandoned plantings, disturbed sites.	Plains, prairies.
Elevation	-20–200 m. (-100–700 ft.)	200–600 m. (700–2000 ft.)
Distribution	AL; CA; FL; LA; Africa [Introduced in North America; introduced also in Mexico (Oaxaca), West Indies, South America] [WildflowerSearch map] [BONAP county map]	KS; OK; TX [BONAP county map]
Discussion		Ipomoea shumardiana is known only from areas where I. leptophylla and I. pandurata are sympatric; the names I. longifolia and I. pandurata have been misapplied to plants of I. shumardiana. (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. 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. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. wrightii, I. ×leucantha
Synonyms	Convolvulus cairicus	Convolvulus shumardianus
Name authority	(Linnaeus) Sweet: Hort. Brit., 287. (1826)	(Torrey) Shinners: SouthW. Naturalist 6: 101. (1961)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos, 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: KS Wildflowers WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Ipomoea shumardiana

cairo morning glory, mile-a-minute vine

narrow-leaf morning glory

Habit

Perennials.

Stems

usually twining, sometimes trailing.

trailing or twining.

Leaf

blades orbiculate to ovate, 30–100 × 30–100 mm overall, palmatisect, lobes 5 (proximal 2 sometimes 2-lobed), lance-elliptic, lanceolate, or lance-ovate, (5–)10–25(–70) × (3–)8–15(–30) mm, apex acute to obtuse, surfaces glabrous.

blades deltate-ovate or narrowly lance-ovate, 30–80 × 10–40 mm, base cordate to truncate, surfaces glabrous.

Peduncles

glabrous;

pedicels straight, 10–25 mm.

glabrous.

Flowers

sepals oblong to ovate, 4–6.5(–9) mm, outers slightly shorter than inners, chartaceous, margins scarious, apex obtuse to acute;

corolla lavender-blue or white, throat purplish-red, funnelform, 45–60 mm.

sepals not dotted with dark spots, elliptic, oblong, or orbiculate, 10–15 mm, outers shorter than inners, coriaceous, surfaces glabrous;

corolla pink or white, throat purple or red inside, funnelform, 50–80 mm, limb 50–80 mm diam.

= 30.

Ipomoea cairica

Ipomoea shumardiana

Phenology

Flowering Mar–Oct.

Flowering Jun–Aug.

Habitat

Abandoned plantings, disturbed sites.

Plains, prairies.

Elevation

-20–200 m. (-100–700 ft.)

200–600 m. (700–2000 ft.)

Distribution

AL; CA; FL; LA; Africa [Introduced in North America; introduced also in Mexico (Oaxaca), West Indies, South America]

[WildflowerSearch map]

[BONAP county map]

KS; OK; TX

[BONAP county map]

Discussion

Ipomoea shumardiana is known only from areas where I. leptophylla and I. pandurata are sympatric; the names I. longifolia and I. pandurata have been misapplied to plants of I. shumardiana.

(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. 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. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. wrightii, I. ×leucantha

Synonyms

Convolvulus cairicus

Convolvulus shumardianus

Name authority

(Linnaeus) Sweet: Hort. Brit., 287. (1826)

(Torrey) Shinners: SouthW. Naturalist 6: 101. (1961)

Web links

Local floras: CA
Local Web sites: CalFlora, CalPhotos, LA Plants
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
LBJ Wildflower Center
SEINet
Plants of the World Online
Encyclopedia of Life
Wikipedia
Google Image Search

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 cairica

Ipomoea shumardiana

Ipomoea cairica

Ipomoea shumardiana