Queen of the Night Identification Guide

Key Identifying Features

Queen of the Night (Epiphyllum oxypetalum) is a sprawling epiphytic cactus grown for its spectacular, large white nocturnal flowers that open for just one night a year and release a powerful sweet fragrance. The plant itself is leggy with flattened, strap-like green stems.

• Flat, broad, leaf-like stems (cladodes) with scalloped or notched edges
• Stems are green, thin, and spineless (true leaves are absent)
• Huge white, funnel-shaped flowers up to 10+ inches across
• Strongly fragrant, night-blooming, lasting only one night

Leaves & Stems

What look like leaves are actually flattened photosynthetic stems. A woody, rounded main stem supports these broad flat green branches with wavy, notched margins; flower buds and new growth emerge from the notches (areoles) along the edges. The plant is essentially spineless and tends to grow lax and sprawling, often needing support. As an epiphyte it naturally grows perched on trees.

Flowers & Fruit

The flowers are the showstopper: very large, pure white, many-petaled, funnel-shaped blooms with creamy outer segments, opening after dark and wilting by morning. They are intensely fragrant and pollinated by moths/bats in the wild. Blooming is brief and seasonal — often a single night, which fuels its mystique. Fruit, when it forms, is an elongated reddish berry.

How to Tell It Apart from Look-Alikes

• Other night-blooming 'Queen of the Night' (e.g., Selenicereus / Cereus): Many unrelated cacti share the common name; Epiphyllum oxypetalum is distinguished by its flat, leaf-like spineless stems rather than ribbed or columnar stems.
• Christmas/Holiday cactus (Schlumbergera): Much smaller, segmented flat stems with showy day flowers; Queen of the Night is far larger with white night flowers.
• Selenicereus grandiflorus: Has slender, angled, spiny climbing stems, unlike the broad flat stems here.

Where You'll Find It

Native to southern Mexico and Central/South America, growing as an epiphyte in tropical forests. Worldwide it is a beloved houseplant and patio container plant, grown in bright, indirect light, in a well-drained, humus-rich mix. It is frost-tender (about USDA zones 10–11) and best given warmth and moderate humidity.

Quick ID Checklist

• Flat, strap-like, scalloped green stems (no true leaves, no spines)
• Sprawling, epiphytic, leggy habit
• Enormous white, fragrant flowers
• Blooms at night, lasting a single night
• Tropical American origin; tender houseplant