Rhipsalis micrantha aka Bird's Foot Cactus

Rhipsalis micrantha is a cactus. People call it small-flowered mistletoe cactus. Another name on record is Pitajayita de Monte. Its native range runs from Costa Rica south to Peru. It also grows in Panama, Colombia, and Ecuador. Kew places it in the wet tropical biome. Records also place it in tropical dry forest and scrub. It grows in rain forest too. Its range spans sea level to 8,202 feet [2,500 metres].

This plant is an epiphyte: it uses other plants for support. It has a strong, succulent form, not upright cactus columns. Its green stems hang down and give it a weeping shape. It has no leaves and keeps its green growth year-round. Useful Tropical Plants calls it an evergreen shrub. The sources give no usable mature height or spread. They give no bark details for this species. Nor do they describe its stem sections.

Chicago Botanic Garden lists white flowers for this plant. The garden gives a bloom time of November to December. That season comes from a garden record. It does not cover bloom times across the whole range. The round fruits range from white to reddish shades. Each is about 0.023–0.033 feet [0.007–0.010 metres] across. Each fruit holds many tiny black seeds. People gather this plant from the wild for local food. People can eat the fruit raw. Useful Tropical Plants rates its edibility at two out of five.

Useful Tropical Plants says this cactus cannot stand frost. Chicago Botanic Garden places it in USDA zones 10–11. The sources differ on which light levels suit it best. Useful Tropical Plants favors light or moderate shade. Chicago lists both full sun and partial shade. The supplied Chicago record lists moderate water needs. Neither source gives a detailed soil mix or watering plan. Growers can start plants from seed or cuttings. They can also divide plants. Cuttings take two to six weeks to root. The time depends on the season.

People also grow this species for its looks. Its hanging green stems define its garden form. Useful Tropical Plants lists no known hazards or medicinal uses. This does not prove it safe for pets or every use. The supplied sources name no specific pests or diseases. The database cites a 2013 IUCN assessment of Least Concern. It reports a broad range and abundant plants. It also reports no known major threats.