FNA: Ipomoea costellata vs. Ipomoea dumetorum

	Ipomoea costellata	Ipomoea dumetorum
	crest-rib morning glory	railway creeper
Habit	Annuals.	Annuals.
Stems	usually trailing, or twining only near tips, rarely erect.	usually twining, sometimes trailing.
Leaf	blades palmatisect, lobes 5–9, lance-linear, linear, oblanceolate, or spatulate, 7–28 × 0.5–3(–8) mm, surfaces glabrous or sparsely hispidulous.	blades deltate, ovate, or ovate-elongate, 24–80 × 8–87 mm, base cordate or ± sagittate to truncate, margins sometimes 3-toothed, surfaces glabrous.
Peduncles	usually glabrous, rarely sparsely hispidulous.	pilosulous on proximal 1–2 mm, distally glabrous.
Flowers	sepals lance-oblong to lanceolate, outers 3–5 × 1–2 mm, inners 4–6 × 2–3 mm, herbaceous, apex acute, abaxial surface usually ± carinate and glabrous, sometimes hispidulous on midrib; corolla pale lavender to pink, funnelform, 10–12 mm.	sepals elongate-ovate to ovate, 3.5–8 mm, chartaceous or coriaceous, apex acute to obtuse, abaxial surface dotted with dark spots; corolla usually dark lavender to pink, rarely white, funnelform, 15–28 mm.

	Ipomoea costellata	Ipomoea dumetorum
Phenology	Flowering Jul–Nov.	Flowering Aug–Oct.
Habitat	Chaparral, oak woodlands, ponderosa pine zone, rocky sites.	Open, dry to wet sites, washes.
Elevation	100–2200 m. (300–7200 ft.)	2000–2800 m. (6600–9200 ft.)
Distribution	AZ; NM; TX; Mexico [Introduced in South America] [WildflowerSearch map] [BONAP county map]	NM; TX; Mexico; South America [BONAP county map]
Discussion		In the flora area, Ipomoea dumetorum is known from the Davis, Organ, and White mountains. The names I. cardiophylla and I. pulchella (Kunth) G. Don (not Roth) have been misapplied to plants of I. dumetorum. (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. 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. 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	I. costellata var. edwardsensis
Name authority	Torrey in W. H. Emory: Rep. U.S. Mex. Bound. 2(1): 149. (1859)	Willdenow in J. J. Roemer et al.: Syst. Veg. 4: 789. (1819)
Web links	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 dumetorum

crest-rib morning glory

railway creeper

Habit

Annuals.

Stems

usually trailing, or twining only near tips, rarely erect.

usually twining, sometimes trailing.

Leaf

blades palmatisect, lobes 5–9, lance-linear, linear, oblanceolate, or spatulate, 7–28 × 0.5–3(–8) mm, surfaces glabrous or sparsely hispidulous.

blades deltate, ovate, or ovate-elongate, 24–80 × 8–87 mm, base cordate or ± sagittate to truncate, margins sometimes 3-toothed, surfaces glabrous.

Peduncles

usually glabrous, rarely sparsely hispidulous.

pilosulous on proximal 1–2 mm, distally glabrous.

Flowers

sepals lance-oblong to lanceolate, outers 3–5 × 1–2 mm, inners 4–6 × 2–3 mm, herbaceous, apex acute, abaxial surface usually ± carinate and glabrous, sometimes hispidulous on midrib;

corolla pale lavender to pink, funnelform, 10–12 mm.

sepals elongate-ovate to ovate, 3.5–8 mm, chartaceous or coriaceous, apex acute to obtuse, abaxial surface dotted with dark spots;

corolla usually dark lavender to pink, rarely white, funnelform, 15–28 mm.

Ipomoea dumetorum

Phenology

Flowering Jul–Nov.

Flowering Aug–Oct.

Habitat

Chaparral, oak woodlands, ponderosa pine zone, rocky sites.

Open, dry to wet sites, washes.

Elevation

100–2200 m. (300–7200 ft.)

2000–2800 m. (6600–9200 ft.)

Distribution

AZ; NM; TX; Mexico [Introduced in South America]

[WildflowerSearch map]

[BONAP county map]

NM; TX; Mexico; South America

[BONAP county map]

Discussion

In the flora area, Ipomoea dumetorum is known from the Davis, Organ, and White mountains. The names I. cardiophylla and I. pulchella (Kunth) G. Don (not Roth) have been misapplied to plants of I. dumetorum.

(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. 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. 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

I. costellata var. edwardsensis

Name authority

Torrey in W. H. Emory: Rep. U.S. Mex. Bound. 2(1): 149. (1859)

Willdenow in J. J. Roemer et al.: Syst. Veg. 4: 789. (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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Ipomoea costellata

Ipomoea dumetorum

Ipomoea costellata

Ipomoea dumetorum