Scientific Name
Rhipsalis pachyptera Pfeiff.
Synonym(s)
Hariota pachyptera
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Rhipsalideae
Genus: Rhipsalis
Etymology
The specific epithet "pachyptera" (pronounced "pak-ee-TER-a") means "thick-winged; having thick wings" and refers to the winged stem segments of this species.
Description
Rhipsalis pachyptera is a spineless, highly branched cactus with semi-erect to somewhat pendent stems composed of many winged to three-winged segments. The stems are green, often tinged red, and can reach up to 5 feet (1.5 m) long.
The primary stem segments have a cylindrical base and can reach lengths of up to 16 inches (40 cm) and widths of 1.2 inches (3 cm), while the secondary stem segments can grow up to 10 inches (25 cm) long and 2.8 inches (7 cm) wide, ending in a truncated or rounded apex.
The white or yellow flowers appear from the areoles between the margin projections in winter. They can reach up to 0.6 inches (1.5 cm) long and 0.9 inches (2.2 cm) in diameter. The fruits are spherical and range in color from pinkish to white as they develop.
Origin
Rhipsalis pachyptera is native to Brazil (Rio Grande do Sul, Santa Catarina, Paraná, São Paulo, Rio de Janeiro, and Espírito Santo). It grows as an epiphyte or lithophyte in mostly open habitats.
How to Grow and Care for Rhipsalis pachyptera
Hardiness: USDA hardiness zones 10a to 11b: from 30°F (-1.1°C) to 50°F (10°C).
Rhipsalis do not thrive in direct sunlight. Afternoon sun can burn the stems, turn them yellow, or cause spotting. However, they will not bloom without sufficient sunlight, and their growth can be stunted as a result. Therefore, these cacti do best with morning sun and full shade in the afternoon.
Because Rhipsalis is commonly grown indoors, be careful with placement. Keep them at least 20 inches (50 cm) from windows that receive midday or afternoon sun. Window glass can intensify the sun's heat, causing sunburn on the leaves. Keep in mind that in its native environment, Rhipsalis is accustomed to receiving light filtered through dense, overhanging tree branches. Picturing this environment can help you adjust your lighting accordingly.
Rhipsalis is not drought-resistant, so regular watering is essential. Overwatering, however, can weaken stems and rot roots. Using a watering can helps you measure how much water you provide. The pot's size compared to the plant's size, home humidity levels, and the type of potting soil used can all affect watering frequency.
Learn more in "How to Grow and Care for Rhipsalis."
Links
- Back to genus Rhipsalis
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
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