Flora of North America species comparison

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Ipomoea costellata

Ipomoea thurberi

crest-rib morning glory

Thurber's morning-glory
Habit Annuals. Perennials, root elongate, tuberous.
Stems

usually trailing, or twining only near tips, rarely erect.

trailing or twining.
Leaf

blades palmatisect, lobes 5–9, lance-linear, linear, oblanceolate, or spatulate, 7–28 × 0.5–3(–8) mm, surfaces glabrous or sparsely hispidulous.

blades ± sagittate, 10–50 × 20–65 mm overall, base sagittate, or blades palmatisect, lobes 5–7, lanceolate, linear, or oblong, surfaces sparsely strigose.
Peduncles

usually glabrous, rarely sparsely hispidulous.

glabrous.
Flowers

sepals lance-oblong to lanceolate, outers 3–5 × 1–2 mm, inners 4–6 × 2–3 mm, herbaceous, apex acute, abaxial surface usually ± carinate and glabrous, sometimes hispidulous on midrib;

corolla pale lavender to pink, funnelform, 10–12 mm.

nocturnal;

sepals lanceolate to lance-linear, 12–15 × 3–4 mm, ± herbaceous, base obscurely warty or not, apex acuminate, setaceous-caudate;

corolla white, tube green, limb red, rose, drying purple, funnelform-salverform, 50–80 mm, limb 50–65 mm diam.

Ipomoea costellata

Ipomoea thurberi
Phenology Flowering Jul–Nov. Flowering Aug–Sep.
Habitat Chaparral, oak woodlands, ponderosa pine zone, rocky sites. Oak woodlands, rocky sites.
Elevation 100–2200 m. (300–7200 ft.) 1100–1600 m. (3600–5200 ft.)
Distribution
from FNA
AZ; NM; TX; Mexico [Introduced in South America]
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; Mexico (Chihuahua, Sonora)
[BONAP county map]
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. 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. sagittata, I. setosa, I. shumardiana, I. sloteri, I. tenuiloba, I. tenuissima, I. ternifolia, I. tricolor, I. triloba, I. violacea, I. wrightii, I. ×leucantha
Synonyms I. costellata var. edwardsensis I. gentryi
Name authority Torrey in W. H. Emory: Rep. U.S. Mex. Bound. 2(1): 149. (1859) A. Gray in A. Gray et al.: Syn. Fl. N. Amer. 2(1): 212. (1878)
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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