Gosong brevipedunculata (H.Okada & Y.Mori) S.Y.Wong & P.C.Boyce

• Genus: Gosong
• Botanical Background: Originally described in 2000 as Hottarum brevipedunculatum by Okada & Mori, the species was reassigned to its own genus, Gosong, by Wong & Boyce in 2018 during a taxonomic revision of Schismatoglottideae.

• Geographical Range: Endemic to central and western Kalimantan (Borneo).
• Environment: Occurs as a rheophyte at ~100 m elevation on rocks along swift streams in wet tropical forests. It endures constant moisture, high humidity (>80%), and filtered light.

Leaves

• Coriaceous, glossy green, lanceolate to narrowly elliptic (10–18 cm × 2–2.5 cm), with thickened, recurved margins and acuminate apices

Inflorescence (Spadix & Spathe)

• Solitary, erect inflorescences feature a white spathe (3–4 cm long) enclosing a sessile spadix (2.5–3.5 cm), with discrete male and female zones
• Scent and pollinators are undocumented

Growth Habit

• A compact terrestrial subshrub with a short rhizome and clustered roots
• Strictly rheophytic

Light Requirements

• Bright, indirect light; avoid direct sun

Watering & Humidity

• Keep substrate consistently moist; maintain humidity ≥70%

Soil & Potting Mix

• Use a loose, well‑draining mix (orchid bark + peat + perlite) in a pot with drainage

Temperature & Fertilizer

• Ideal 22–28 °C

• Feed monthly during growing season with balanced liquid fertilizer diluted to half strength

Division

• Best propagated by dividing rhizomes during repotting

Seeds

• Rarely cultivated from seed; germination unstudied

Typical Issues

• Watch for spider mites, mealybugs, and root rot

Treatment Recommendations

• Treat pests with insecticidal soap or neem oil
• Avoid waterlogging to prevent fungal issues

• As a rheophyte, it plays a niche ecological role stabilizing riverbank substrates

• Highly sought after for its rarity and unique narrow‑leaf habit

Wild Population Status

• Predicted as threatened due to restricted range and habitat specificity

Market Availability

• Rare
• Found only through specialty aroid nurseries and collectors