Xanthosoma sanintiae Croat & Delannay

• Genus: Xanthosoma
• Botanical Background: Described by Thomas B. Croat and Bertrand Delannay, the species was named after botanist Marta Sanín, who contributed significantly to Colombian plant studies.

• Geographical Range: Endemic to Colombia
• Environment: Found in moist forest understories, it prefers high humidity, consistent rainfall, and fertile, organic-rich soils.

Leaves

• Broad, arrow-shaped (sagittate) leaves with smooth surfaces and well-defined venation
• Foliage is lush green and held on long, sturdy petioles

Inflorescence (Spadix & Spathe)

• Pale green to yellowish spathe enclosing a thick spadix
• Beetle-pollinated, though specific details are limited

Growth Habit

• Terrestrial species with tuberous roots, forming upright, leafy clumps
• Non-climbing and grows best in shaded, soil-rooted environments

Light Requirements

• Bright, indirect light
• Avoid prolonged exposure to direct sunligh

Watering & Humidity

• Needs consistently moist soil and high humidity
• Do not allow the soil to fully dry out during the growing period

Soil & Potting Mix

• Thrives in a loose, well-draining potting mix with high organic content
• Use a blend of peat, compost, and perlite for optimal aeration and moisture retention

Temperature & Fertilizer

• Ideal temperature range is 22–30°C (72–86°F)
• Fertilize every 3 to 4 weeks with a balanced or nitrogen-rich formula during active growth

Division

• Commonly propagated through tuber division
• Ensure each segment has an active growth point

Seeds

• Propagation is undocumented
• Limited availability and viability challenges

Typical Issues

• Spider mites, mealybugs, and aphids
• Overwatering may lead to tuber or root rot

Treatment Recommendations

• Use neem oil or insecticidal soap to treat pests
• Maintain proper drainage and avoid excess moisture to prevent fungal issues

• Named after botanist Marta Sanín for her work in Colombian botany
• Species is part of Colombia’s highly biodiverse Chocó flora

• Large, tropical foliage makes it a potential ornamental choice
• Largely inaccessible to collectors due to rarity

Wild Population Status

• Conservation status has not been formally assessed
• Limited known distribution may place it at risk if habitat loss continues

Market Availability

• Not available commercially
• Found in herbarium records or botanical garden collections