🌿 Begonia amphioxus — The Miniature Jewel of Borneo's Jungle

Begonia amphioxus is a rare miniature species, discovered in 1985 by Ruth Kiew in northern Borneo's Sabah. Its dark-green leaves with intense burgundy spots on a lance-shaped form make it a desired collection piece in the rare begonia world. The name "amphioxus" means "sharp at both ends."

This is not a beginner's plant — high humidity requirements make it a piece for closed terrariums.

🌍 Origin and Botanical History

Endemic to Sabah state in northern Borneo (Malaysia), growing on humid limestone rocks of lower montane forests at elevations of 200-900 m. Belongs to section Petermannia of the Begoniaceae family (~1900 species).

🌱 The Foliage

Lance-elongated leaves, 5-8 cm long and 1-2 cm wide, with unique graphic shape. On the dark-green base, circular burgundy spots (1-3 mm) are distributed. On the underside, leaves are entirely deep red. In insufficient light, spot intensity decreases.

🌸 The Flowers

Small flowers (5-8 mm), white or pale pink, in short clusters. Flowering rare in apartments. The species' attraction lies in the foliage.

🌱 Growth and Care

Slow growth — 5-10 cm/year. At maturity remains compact (20-25 cm). Propagation via stem cuttings, but difficult (50-70% success).

• Light: Moderate indirect, 5,000-12,000 lux.
• Temperature: 18-25°C constant.
• Watering: Every 4-6 days summer. NEVER stagnant.
• Humidity: 70-85% — essential. Terrarium MANDATORY.
• Substrate: Slightly acidic airy: 40% peat/coco, 25% perlite, 15% bark, 10% sphagnum.

On Eufloria, part of rare begonias. Use epiphyte substrate. Mildly toxic (calcium oxalate) — non-toxic alternatives.