Flora of North America species comparison

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Ipomoea alba

Ipomoea plummerae

moon flower, tropical white morning-glory

Huachuca morningglory, Huachuca Mountain morning-glory, Plummer's morning glory
Habit Perennials.
Stems

twining, usually prickly, sometimes rooting at nodes.

usually ± trailing, sometimes ascending, erect, or twining near tips.
Leaf

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

blades of 2 forms;

one form ± orbiculate, palmatisect, lobes (3–)5(–7+), linear to spatulate, 3–30(–50) × (0.5–)1–2.5 mm, base ± truncate; the other form ± cuneate-obovate, proximally cuneate, distally ± incised, 3–5(–7+)-toothed;

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 oblong to ovate, outers 5–8 × 2–3 mm, abaxial surface ± muricate or smooth, apex acute to obtuse, mucronate, inners broadly ovate, 7–9(–10) × 3–4 mm, apex acuminate to acute, surfaces glabrous, chartaceous to coriaceous;

corolla purple to lavender, funnelform, 25–31 mm, limb 18–22 mm diam.
Fruits

20–30 mm.

Vperennials

, root globose, tuberlike.
2n

= 30.

Ipomoea alba

Ipomoea plummerae
Phenology Flowering Sep–May.
Habitat Forest margins, swamps, moist sites.
Elevation 0–100 m. (0–300 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 USDA
sw United States; Mexico; South America
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 3 (2 in the flora).

Variety cupulata J. A. McDonald is known in Mexico from Chihuahua, Guerrero, Jalisco, and Sinaloa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Leaf blades ± orbiculate, palmatisect, lobes (3–)5(–7+).
var. plummerae
1. Leaf blades ± cuneate-obovate, proximally cune­ate, distally ± incised, 3–5(–7+)-toothed.
var. cuneifolia
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. 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
Subordinate taxa
I. plummerae var. cuneifolia, I. plummerae var. plummerae
Synonyms Calonyction aculeatum, Convolvulus aculeatus
Name authority Linnaeus: Sp. Pl. 1: 161. (1753) A. Gray in A. Gray et al.: Syn. Fl. N. Amer. ed. 2, 2(1): 434. (1886)
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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