Stigmaphyllon emarginatum (Cav.) A.Juss.

  • Authority

    Acevedo-Rodríguez, Pedro. 2005. Vines and climbing plants of Puerto Rico and the Virgin Islands. Contr. U. S. Natl. Herb. 51: 1-483.

  • Family

    Malpighiaceae

  • Scientific Name

    Stigmaphyllon emarginatum (Cav.) A.Juss.

  • Description

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    Description - Woody vine, twining, attaining 5-10 m in length. Stem up to 8 cm in diameter; much branched from the base; bark very rough, reddish brown. Branches copper-colored, glabrous, more or less cylindrical, lenticellate, the young portions strigulose. Leaves opposite, coriaceous, lanceolate, ovate, oblong, linear, or less frequently rounded, 2.5-10(13) x 1-5.5(10.5) cm, sparsely appressed-pubescent when young, glabrescent, the apex acute or obtuse, emarginate-mucronate, the base truncate or cordiform, the margins entire or undulate; upper surface shiny, with the reticulate venation prominent; lower surface pale green, dull, with the midvein prominent; petioles yellowish, flattened on the upper surface, 0.2-2 cm long, with two discoid glands in the area adjacent to the blade; stipules triangular, minute. Inflorescences of axillary umbels, corymbs, or pseudoracemes, with 15-35 flowers; peduncles pubescent. 0,2-2.5 cm long; pedicels 3-23 mm long, articulated above the base; bracts minute, eglandular. Calyx of 5 ovate-triangular sepals, 4(5) of which have a pair of glands outside at the base. Petals 5, yellow, rounded, unguiculate, 11-15 mm long; stamens unequal, glabrous or puberulent; anterior style shorter: stigmas green. Mericarps 1.6-2.2 cm long, with an asymmetrical dorsal wing, curved on the upper margin and crenate on the lower margin.

    Phenology - Flowering throughout the year and fruiting from January to August.

    Conservation Status - Native, very common.

  • Common Names

    bejuco de San Juan