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confederate vine, coral vine, Mexican coral vine, Mexican creeper, queen's jewels, queen's wreath

Habit Plants herbaceous or base sometimes woody.
Stems

climbing or sprawling by tendrils, branched, angular, to 15 m, sparsely to densely brownish- or reddish-pubescent or glabrous.

Leaves

ocrea 0.2–2 mm;

petiole often winged distally, 1–2.5(–5) cm, glabrate or pubescent;

blade 5–14 × (2–)4–10 cm, base usually cordate, margins ciliate, apex acute to acuminate, glabrous or pubescent, especially on veins.

Inflorescences

4–20 cm, axes puberulent to pilose;

peduncle angular, 1–5 cm, puberulent to pilose.

Pedicels

articulated proximally, 3–5(–10) mm, glabrous or pubescent.

Flowers

tepals ovate to elliptic, 4–8 × 2–6 mm, 8–20 × 4–15 mm in fruit, margins entire, apex acute.

Achenes

8–12 × 4–7 mm, shiny.

2n

= 14, 40, 42–44, 48.

Antigonon leptopus

Phenology Flowering year-round.
Habitat Cultivated and often persisting after abandonment, rarely escaping
Elevation 0-600 m [0-2000 ft]
Distribution
from FNA
AL; FL; GA; LA; MS; SC; TX; Mexico; Central America [Introduced in North America; introduced in West Indies, Asia, Africa]
[WildflowerSearch map]
[BONAP county map]
Discussion

Antigonon leptopus is cultivated widely as an ornamental in warmer parts of the world and is grown extensively in South America. In the flora region, it appears to have naturalized only in Florida and southern Texas; records from elsewhere probably represent plants that have persisted from cultivation. It propagates easily by cuttings and seeds, and the tubers are edible.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 5, p. 481.
Parent taxa Polygonaceae > subfam. Polygonoideae > Antigonon
Name authority Hooker & Arnott: Bot. Beechy Voy., 308, plate 69. (1838)
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