Flora of North America species comparison

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Ipomoea alba

Ipomoea sagittata

moon flower, tropical white morning-glory

saltmarsh morning-glory
Habit Perennials. Perennials.
Stems

twining, usually prickly, sometimes rooting at nodes.

twining.
Leaf

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

blades ± triangular, 40–100 × 20–60 mm overall, base hastate to sagittate, basal lobes lanceolate, linear, or narrowly triangular, 15–60(–100) × 3–8(–15) mm, surfaces glabrous.
Peduncles

glabrous.

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 elliptic, oblong, or ovate, 8–9 mm, coriaceous, apex obtuse to rounded, mucronate, surfaces glabrous;

corolla lavender, purple, or red-purple, funnelform, 60–90 mm, limb 60–80 mm diam.
Fruits

20–30 mm.

2n

= 30.

Ipomoea alba

Ipomoea sagittata
Phenology Flowering Sep–May. Flowering Apr–Oct.
Habitat Forest margins, swamps, moist sites. Beaches, brackish or freshwater marshes, swamps.
Elevation 0–100 m. (0–300 ft.) 0–400 m. (0–1300 ft.)
Distribution
from FNA
FL; LA; SC; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia]
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; FL; GA; LA; MS; NC; SC; TX; Mexico; West Indies [Introduced in Eurasia, nw Africa]
[WildflowerSearch map]
[BONAP county map]
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. setosa, I. shumardiana, I. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. thurberi, I. tricolor, I. triloba, I. violacea, I. wrightii, I. ×leucantha
Synonyms Calonyction aculeatum, Convolvulus aculeatus
Name authority Linnaeus: Sp. Pl. 1: 161. (1753) Poiret: Voy. Barbarie 2: 122. (1789) — (as Ipomea)
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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