Petrea volubilis L.

  • 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

    Verbenaceae

  • Scientific Name

    Petrea volubilis L.

  • Description

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    Description - Twining liana or shrub, scandent or less frequently erect, with numerous basal branches, attaining 2-4 m in length. Stems obtusely quadrangular, pubescent or glabrous; stipules absent. Leaves opposite, sometimes whorled, 3-25 x 1.5-11 cm, elliptical, chartaceous, the apex obtuse, rounded-acute, or short-acuminate, the base obtuse or rounded, sometimes slightly asymmetrical, the margins entire, crenate, or sometimes serrate; upper surface glabrous or puberulent, scaberulous, with prominent venation; lower surface puberulent or glabrous, pale green, scaberulous, with numerous resinous dots, the venation prominent; petioles 4-16 mm long, puberulent. Inflorescences of axillary racemes, 10-60 cm long; bracts minute; pedicels 7-18 mm long, slender, puberulent. Calyx infundibuliform, blue-violet or white, the sepals 1.6-2 cm long, connate at the base to form a tube, 3-7 mm long, glabrous or pubescent; corolla infundibuliform, blue-violet or white, 0.6-1.5 cm long, the limb 5-lobate, one of the lobes larger; stamens included; ovary glabrous, the style short. Fruit unknown.

    Phenology - Flowering sporadically throughout the year.

    Conservation Status - Exotic, cultivated.