Flora of North America species comparison

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Ipomoea hederacea

Ipomoea pubescens

ivy morning-glory, ivy-leaf morning-glory

silky morning-glory
Habit Annuals. Perennials, root oblong, relatively large.
Stems

twining.

twining.
Leaf

blades ± orbiculate, ovate, or 3–5-lobed, not palmatisect, 50–120 × 50–120 mm, base cordate, basal lobes ± pointed, surfaces hairy.

blades cordate, ovate, or 3–5-lobed, 20–80 × 20–90 mm, base cordate, lobes elliptic to ovate, surfaces ± hirsute or coarsely sericeous.
Peduncles

hairy, hairs retrorse.

hairy, hairs retrorse or spreading.
Flowers

sepals ± lanceolate, 12–24 mm, herbaceous, proximally ovate, abruptly narrowed to ± curved or spreading distal portion notably longer than dilated base, abaxial surface, at least proximal 1/3, hirsute to hispid;

corolla light blue, tube white or pale yellow inside, funnelform, 20–37(–45) mm, limb 17–35 mm diam. 2n = 30.

sepals lance-ovate to ovate, 9–21 × 2–11 mm, herbaceous, abaxial surface ± hispid or coarsely sericeous;

corolla blue to violet, funnelform, 55–80 mm, limb 60–70 mm diam.

Ipomoea hederacea

Ipomoea pubescens
Phenology Flowering May–Nov. Flowering Aug–Sep.
Habitat Abandoned plantings, dis­turbed sites, gravel bars, roadsides. Rocky sites, stream beds, oak woodlands.
Elevation 10–1900 m. (0–6200 ft.) 100–1600 m. (300–5200 ft.)
Distribution
from FNA
AL; AR; AZ; CA; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; ND; NE; NH; NJ; NM; NY; OH; OK; PA; SC; SD; TN; TX; VA; WI; WV; ON; Mexico; South America; intro­duced in Europe; Africa; Pacific Islands (New Zealand); Australia
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[BONAP county map]
from FNA
AZ; NM; TX; Mexico; South America
[WildflowerSearch map]
[BONAP county map]
Discussion

Leaf shape in Ipomoea hederacea, and, perhaps, in other ipomoeas, is under simple genetic control and is useless for recognition of varieties (C. D. Elmore 1986).

(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. 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. 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. hederacea var. integriuscula, Pharbitis barbigera
Name authority Jacquin: Collecteana 1: 124, plate 36. (1787): Icon. Pl. Rar., plate 36. (1787) Lamarck in J. Lamarck and J. Poiret: Tabl. Encycl. 1: 465. (1793) — (as Ipomaea)
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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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