Contents
Description
Cleistanthus Sumatranus, also known as the Poison Cleistanthus, is a small evergreen tree or shrub native to Southeast Asia. It belongs to the family Phyllanthaceae and is known for its toxic properties. The plant is commonly found in the forests of Malaysia, Indonesia, and the Philippines.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Malpighiales |
| Family | Phyllanthaceae |
| Genus | Cleistanthus |
Appearance
Cleistanthus Sumatranus has shiny, dark green leaves that are oval-shaped and pointed at the tip. The leaves are around 5-10 cm long and 2-4 cm wide. The plant produces small, white flowers that are typically less than 1 cm in diameter. The fruit of the plant is a capsule that contains small, brown seeds. The plant can grow up to 5 meters tall, but it is often smaller in cultivation.
Care Guide
Cleistanthus Sumatranus requires moderate care and attention. Here are some tips for caring for this plant:- Water: The plant prefers moist but well-draining soil. Water the plant regularly, but allow the soil to dry out slightly before watering again.- Fertilization: Apply a balanced, slow-release fertilizer in the spring and summer months.- Soil: The plant prefers slightly acidic soil that is rich in organic matter.- Sunlight: The plant prefers partial shade to full sun.- Hardiness Zones: Cleistanthus Sumatranus is hardy in USDA zones 10-11.
Common Pests & Diseases
Cleistanthus Sumatranus is relatively resistant to pests and diseases. However, here are some common issues to watch out for:- Leaf spot: This fungal disease appears as brown or black spots on the leaves. Remove infected leaves and apply a fungicide.- Scale insects: These insects can infest the plant and cause yellowing of the leaves. Use an insecticidal soap to control the infestation.- Spider mites: These pests can cause leaf discoloration and webbing on the plant. Use a miticide to control the infestation.
Habitat
Cleistanthus Sumatranus is native to the forests of Southeast Asia, including Malaysia, Indonesia, and the Philippines. The plant prefers a warm, humid climate with regular rainfall. It is often found growing in the understory of forests and can tolerate a range of soil types.
Question and Answer
Q: Is Cleistanthus Sumatranus poisonous?
A: Yes, the plant is highly toxic and can be fatal if ingested.
Q: Can Cleistanthus Sumatranus be grown indoors?
A: Yes, the plant can be grown indoors as long as it receives adequate sunlight and is not overwatered.
Q: How often should I fertilize Cleistanthus Sumatranus?
A: Apply a slow-release fertilizer once every 3-4 months during the growing season.
Q: How tall does Cleistanthus Sumatranus grow?
A: The plant can grow up to 5 meters tall, but is often smaller in cultivation.
Related Plants
– Cleistanthus Collinus- Cleistanthus Malabaricus- Cleistanthus Polystachyus
References
– “Cleistanthus Sumatranus.” Floridata. https://floridata.com/plant/909/- “Cleistanthus Sumatranus.” Gardening Know How. https://www.gardeningknowhow.com/ornamental/trees/poison-cleistanthus/growing-poison-cleistanthus.htm- “Cleistanthus Sumatranus.” World Agroforestry Centre. https://www.worldagroforestry.org/treedb2/AFTPDFS/Cleistanthus_sumatranus.pdf
