Flora of North America species comparison

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Ipomoea batatas

Ipomoea rupicola

camote, sweet potato, wild sweet potato

cliff morning-glory
Habit Perennials, root relatively large, tuberlike. Perennials, rhizomatous.
Stems

± trailing, rarely twining.

trailing or twining.
Leaf

blades cordate, broadly ovate, or 5–7-lobed, 50–100+ × 40–100 mm overall, base cordate, surfaces glabrous or hairy.

blades usually cordate-ovate to oblong-ovate, sometimes pandurate, 30–90 × 20–70 mm, base cordate-hastate, margins sometimes indented, rarely lobed or toothed, surfaces tomentulose, glabrescent.
Peduncles

glabrous or hairy, hairs appressed.

hairy, tomentulose, hairs ± appressed.
Flowers

sepals lanceolate to oblong, 8–15 mm, chartaceous;

corolla usually lavender, pink, or purplish, sometimes white, throat usually darker inside, funnelform, (30–)40–70 mm.

sepals elliptic-oblong to oblong-ovate, 12–14 mm, coriaceous, apex obtuse, rounded, or subacute;

corolla lavender-pink or purple, throat darker inside, funnelform, 70–90 mm.
Seeds

glabrous.

hairy.
2n

= 60, 84, 90.

Ipomoea batatas

Ipomoea rupicola
Phenology Flowering year-round. Flowering Jun–Oct.
Habitat Abandoned plantings, thickets. Rocky, open sites.
Elevation 0–200+ m. (0–700+ ft.) 20–1800 m. (100–5900 ft.)
Distribution
from FNA
FL; KS; LA; MS; NC; NY; PA; SC; TX; UT; VA; Mexico; Central America; South America; West Indies [Introduced in North America; introduced also in Asia, Africa]
[WildflowerSearch map]
[BONAP county map]
from FNA
TX; Mexico (Tamaulipas)
[BONAP county map]
Discussion

Reports of Ipomoea batatas from northern parts of the flora area appear to be based on ephemerals.

(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. 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. 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 batatas
Name authority (Linnaeus) Lamarck in J. Lamarck and J. Poiret: Tabl. Encycl. 1: 465. (1793) House: Ann. New York Acad. Sci. 18: 230. (1908)
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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