Scientific Name
Rhipsalis cereuscula Haw.
Synonym(s)
Erythrorhipsalis cereuscula, Hariota cereuscula
Common Name(s)
Coral Cactus, Rice Cactus, Mistletoe Cactus
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Rhipsalideae
Genus: Rhipsalis
Etymology
The generic name "Rhipsalis" (pronounced "RIP-sa-lis") is derived from the Ancient Greek noun ῥίψ (rhíps), meaning "wickerwork" or "wattle." It refers to the slender, interlacing branches characteristic of many species in the genus.
The specific epithet "cereuscula" (pronounced "ker-ee-USK-yoo-luh") means "small candles" and likely refers to the shape of this species' stem joints.
Description
Rhipsalis cereuscula is a shrubby cactus with light green stems crowned with clusters of tiny, rice-shaped joints. The stems are initially erect but become pendant as they grow, reaching up to 3 feet (90 cm) long.
The greenish-white flowers are often tinged with pink, appear from the terminal areoles, and are followed by tiny, white berries. The bell-shaped flowers can grow up to 0.6 inches (1.5 cm) long and 0.8 inches (2 cm) in diameter.
Origin
Rhipsalis cereuscula is native to Uruguay and Brazil. It grows as an epiphyte in lowland to submontane tropical moist forests at elevations that range from 660 to 4,600 feet (200 to 1,400 m).
How to Grow and Care for Rhipsalis cereuscula
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 leaves, turn them yellow, or cause spotting. However, they will not bloom without sufficient sunlight, and their growth can be stunted. Therefore, these cacti do best with morning sun and full shade in the afternoon.
Because Rhipsalis is commonly grown indoors, pay close attention to plant 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 at 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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