Convolvulus crenatifolius

This species is characterized by its pubescent to densely hirsute herbaceous stems that can grow up to 3 m in height. The leaves are petiolate, ranging from 3 to 8 cm in length and 1 to 4 cm in width, with an ovate-deltoid shape, strongly auriculate, and a broadly cordate to hastate base. The apex is usually obtuse and mucronate, while the margins are undulate to sinuate. The petioles measure 7 to 15 mm in length. Flowers are arranged in compact axillary cymes, with 1 to 7 flowers per cyme. The peduncles range from 1.5 to 12 cm, and the bracteoles are narrowly lanceolate and 2 to 5 mm long. The pedicels are 2 to 12 mm and appear to enlarge after flowering. The outer sepals are elliptic, 6 to 6.5 cm long and 3.5 to 5 cm wide, with an obtuse or acute apex. The corolla is 1.1 to 1.5 cm long, white to pink, deeply lobed, with brownish midpetaline bands and a pilose texture that terminates in a mucro. The ovary is glabrous, and the style is divided approximately 7 mm above the base. The stigmas are 3 mm long and more or less included. The capsule is glabrous, and the seeds are smooth.

Convolvulus crenatifolius is found in a variety of habitats across its native range, including regions in Brazil, Mexico, Argentina, Bolivia, Ecuador, Paraguay, Peru, Texas, and Uruguay. It typically grows in open, disturbed areas and along the edges of forests, where it can take advantage of the available sunlight and support from surrounding vegetation for its twining stems.

This species is relatively easy to cultivate in warm climates with well-drained soil and ample sunlight. It thrives in full sun to partial shade and requires moderate watering. Due to its twining growth habit, it benefits from a trellis or support structure. Propagation can be achieved through seeds or cuttings. The plant is drought-tolerant once established and can be used in gardens to attract pollinators such as bees and butterflies.

While not widely cultivated for commercial purposes, Convolvulus crenatifolius is occasionally grown in botanical gardens and as an ornamental plant due to its attractive flowers. It may also serve as a food source for certain pollinators and is of interest to botanists and horticulturists for its ecological and ornamental value.