Colobogynium variegatum (Hook. ex Veitch) S.Y.Wong, A.Hay & P.C.Boyce

• Genus: Colobogynium
• Botanical Background: Originally described under Schismatoglottis by Hooker & Veitch in 1862, it was transferred to its own genus by Wong, Hay & Boyce in 2023 to reflect distinctive morphological and molecular characters.

• Geographical Range: Endemic to lowland tropical rainforest floor of Sumatra (Kepulauan Riau) and Borneo.
• Environment: Occurs in permanently moist, shaded understories on humus‑rich soil. 

Leaves

• Simple, elliptic to lanceolate (15–30 cm long)
• Thin but slightly coriaceous
• Irregular cream‑silver variegation on a deep green background

Inflorescence (Spadix & Spathe)

• Small, greenish‑white spathe (3–5 cm long) enveloping a cylindrical spadix
• Scent minimal
• Likely beetle‑pollinated

Growth Habit

• Terrestrial geophyte with a creeping rhizome
• New shoots arise annually from fleshy underground stems

Light Requirements

• Bright, indirect light; avoid direct sun

Watering & Humidity

• Keep soil evenly moist (never waterlogged)
• Maintain ≥70% humidity
• Mist regularly or use a humidity tray

Soil & Potting Mix

• Use a loose, well‑draining mix (peat moss + orchid bark + perlite)
• Pot with drainage holes

Temperature & Fertilizer

• Ideal 22–28 °C; do not allow below 15 °C
• Feed monthly (balanced 20‑20‑20 NPK) during active growth (spring–summer)

Division

• Divide rhizomes into sections (each with ≥1 growing shoot)
• Plant immediately in moist medium
  

Seeds

• Rarely cultivated from seed; germinate fresh, viable seed in warm (25–28 °C), humid conditions within 4–6 weeks

Typical Issues

• Susceptible to root rot (overwatering), mealybugs, spider mites, scale
• Ensure good airflow; inspect new plants

Treatment Recommendations

• Root rot: remove affected roots, repot in fresh mix, reduce watering
• Insects: wipe foliage with insecticidal soap or neem oil; repeat weekly until cleared

• Only species in its genus
• Variegation patterns unique and variable—highly prized by collectors

• Rare in cultivation
• Valued for distinctive foliage and compact habit suitable for terrariums and shaded indoor collections

Wild Population Status

• Sot yet formally assessed by IUCN
• Habitat loss in Borneo/Sumatra suggests potential vulnerability

Market Availability

• Extremely rare; occasionally available through specialist aroid nurseries or private collectors.