Ipomoea hederifolia L.

SCARLETCREEPER

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Wood et al. (2020) reported one specimen each from Florida for I. coccinea (Buckley s.n., K) and I. hederifolia (Burkhalter 12850, UWFP). For I. coccinea (endemic to the SE USA), it is defined by its unlobed leaf blades, outer sepals 3 mm long with a 2-6 mm mucro (inner sepals 5 mm with a 2-5 mm mucro), and the pedicel becoming reflexed in fruit. For I. hederifolia (widespread in neotropics and SE USA), it has usually lobed leaf blades, the outer sepals 1.5-3 mm long (2-5 mm with mucro and inner sepals slightly larger), and the pedicel erect in fruit (Wood et al. 2020). O'Donell (1959) characterized I. hederifolia as having lobed or unlobed leaves, inner sepals to 3(-4) mm long, erect fruiting pedicels, and found from Florida, Georgia, Louisiana, and Texas south to northern Argentina, while I. coccinea had unlobed leaves, inner sepals 4-6 mm long, reflexed fruiting pedicels, and restricted from Georgia north to Rhode Island and west to Oklahoma (see also Wilson 1960; Wijnands 1983). Samples identified as I. coccinea from North Carolina and George were distinct from samples identified as I. hederifolia from Mexico and Papau New Guinea based on ITS sequences (Miller et al. 2004). The provenance of the earlier name I. coccinea (lectotype: LINN 219.3) was given as "Domingo" by Linnaeus, which allegedly (O'Donell 1959) actually referred to the type of I. hederifolia, Plumier's illustration, from Hispaniola.

Native FACU (NWPL)

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