Flora of North America species comparison

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Ipomoea pandurata

Ipomoea nil

bigroot morningglory, man-of-the-earth, wild potato vine, wild sweet potato, wild sweet potato morning-glory

ivy morning glory, Japanese morning glory, whiteedge morning-glory
Habit Perennials, root relatively large. Annuals.
Stems

usually twining, sometimes trailing.

twining.
Leaf

blades cordate, cordate-ovate, or pandurate, 30–100 × 20–90 mm, base cordate, surfaces glabrous or abaxial hairy.

blades cordate, ± orbiculate, ovate, or 3-lobed, 50–150 × 20–140 mm overall, base cordate, surfaces sparsely hirsute to sericeous.
Peduncles

glabrous.

hairy, hairs retrorse.
Flowers

sepals elliptic-oblong, 12–22 mm, outers sometimes shorter than inners, coriaceous, surfaces glabrous;

corolla white, throat lavender or purple-red inside, funnelform, 50–80 mm.

sepals lance-linear, 15–25(–30) mm, herbaceous, proximally narrowly ovate, densely hispid, gradually narrowed to ± straight, hispid to strigose or glabrate distal portion longer than ovate base;

corolla usually blue to purplish, sometimes red or white, tube white or yellow inside, funnelform, (20–)30–60+ mm.
2n

= 30.

= 30.

Ipomoea pandurata

Ipomoea nil
Phenology Flowering Jun–Sep. Flowering Jul–Dec.
Habitat Abandoned plantings, fields, prairies. Abandoned plantings, fields, thickets.
Elevation 0–600 m. (0–2000 ft.) 10–2200 m. (0–7200 ft.)
Distribution
from FNA
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MO; MS; NC; NE; NJ; NY; OH; OK; PA; SC; TN; TX; VA; WV; ON
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; KY; LA; MD; MS; NC; OK; SC; TN; TX; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia]
[WildflowerSearch map]
[BONAP county map]
Discussion

Reports of Ipomoea nil from California are based on misidentified material of I. hederacea.

(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. imperati, I. indica, I. lacunosa, I. leptophylla, I. lindheimeri, I. longifolia, I. macrorhiza, I. microdactyla, I. muricata, I. nil, 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. 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 panduratus Convolvulus nil, Pharbitis hederacea, P. nil
Name authority (Linnaeus) G. Meyer: Prim. Fl. Esseq., 100. (1818) (Linnaeus) Roth: Catal. Bot. 1: 36. (1797)
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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