Xanthosoma fonnegrae Croat & Delannay

• Genus: Xanthosoma
• Botanical Background: Described by botanists Croat and Delannay; Rich diversity of Neotropical aroids. Their work has helped distinguish subtle morphological features that separate X. fonnegrae from closely related species.

• Geographical Range: Indigenous to tropical rainforest regions in the Neotropics
• Environment: Thrives in warm, moist conditions with well-draining, organic-rich soils. It is typically found in shaded understories where filtered light and consistent humidity provide an ideal growing environment.

Leaves

• Broadly elliptical and medium to large in size with a textured surface
• Deep green coloration accented by unique patterns or markings that add to their ornamental value

Inflorescence (Spadix & Spathe)

• Produces an inflorescence typical of aroids, featuring a pale spathe that partially encloses a slender spadix
• Flowers are modest in size, they attract small insect pollinators

Growth Habit

• Terrestrial species grows from a tuberous rhizome and forms dense clumps
• Growth habit makes it well suited for container culture and tropical garden displays

Light Requirements

• Bright; indirect light
• Direct sunlight should be avoided to prevent leaf scorch

Watering & Humidity

• Keep the soil evenly moist with regular watering 
• Ensuring good drainage to avoid waterlogging
• High ambient humidity is essential
• Regular misting or situating the plant in a naturally humid area

Soil & Potting Mix

• A well-draining, organic-rich potting mix is recommended
• Blend of peat, perlite, and compost or coir will help maintain moisture balance while providing proper drainage

Temperature & Fertilizer

• Maintain temperatures between 20 and 28°C (68 and 82°F) to replicate its tropical habitat
• Balanced, diluted fertilizer monthly during the growing season to encourage healthy growth

Division and Cuttings

• Dividing the tuberous rhizomes
• Ensure each division has a healthy portion of roots and at least one active bud to promote successful establishment

Seeds

• Less common due to typically lower germination rate
• Longer period required for the plant to mature compared to division

Typical Issues

• Spider mites, mealybugs, and aphids
• Overwatering can lead to fungal issues such as root rot

Treatment Recommendations

• Use insecticidal soap or neem oil to manage pest infestations
• Ensure proper air circulation
• Proper watering practices to prevent fungal diseases and maintain overall plant health

• Named in honor of an individual (Fonnegrae) recognized for contributions to tropical botany
• Unique leaf patterns may serve as an adaptation to its understory habitat and add ecological as well as ornamental interest

• Distinctive foliage and compact clumping habit. Its attractive leaf markings and ease of cultivation in shaded
• Humid environments make it a favored choice for tropical collections and rock garden displays

Wild Population Status

• No immediate conservation concerns
• Habitat loss in tropical regions is a potential long-term threat that warrants monitorin

Market Availability

• Available through specialist tropical plant nurseries and among dedicated aroid collectors
• Limited presence in mainstream horticulture adds to its rarity and appeal