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Description
Myriophyllum Robustum, commonly known as robust watermilfoil, is an aquatic plant species native to North America. It belongs to the Haloragaceae family and is a submerged perennial herb that grows up to 1.5 meters in length. The plant is characterized by its feathery, dense, and bushy appearance, with leaves arranged in whorls of four to six. The leaves are finely divided, and the stem is slender, flexible, and branching. The flowers are small, greenish-white, and grow in terminal spikes above the water surface.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Haloragales |
| Family | Haloragaceae |
| Genus | Myriophyllum |
| Species | Myriophyllum Robustum |
Appearance
Myriophyllum Robustum has a unique appearance that makes it stand out from other aquatic plants. The plant has feathery, dense, and bushy foliage that is typically green in color, but it can turn red or brown in the fall. The leaves are finely divided and arranged in whorls of four to six around the stem. The stem is slender, flexible, and branching, and it can grow up to 1.5 meters in length. The flowers are small, greenish-white, and grow in terminal spikes above the water surface.
Care Guide
To ensure that Myriophyllum Robustum thrives in your aquatic garden, you need to take proper care of it. Here’s a detailed care guide that will help you keep your plant healthy and vibrant:Water: Myriophyllum Robustum is an aquatic plant that requires ample water to grow. It should be submerged in water, with the tips of the stems reaching the water surface.Fertilization: You can fertilize the plant with a slow-release fertilizer that is specifically designed for aquatic plants. Make sure you follow the instructions on the fertilizer package.Soil: Myriophyllum Robustum does not require soil to grow, as it is a submerged aquatic plant. However, you can anchor the plant to the bottom of your pond or aquarium with weights or rocks.Sunlight: Myriophyllum Robustum prefers bright, indirect light. It can tolerate partial shade but does not do well in full shade.Hardiness Zones: The plant thrives in hardiness zones 4-10.
Common Pests & Diseases
Like all plants, Myriophyllum Robustum is susceptible to pests and diseases. Here are some of the most common pests and diseases that can affect the plant:Algae: Algae can grow on the plant and suffocate it. You can control algae growth by reducing the amount of sunlight the plant receives and adding an algaecide to the water.Snails: Snails can eat the leaves of the plant, causing it to weaken and die. You can control snail populations by adding a snail trap or predator to your pond or aquarium.Rust: Rust is a fungal disease that can cause yellow, orange, or brown spots on the leaves of the plant. You can control rust by removing infected leaves and treating the plant with a fungicide.
Habitat
Myriophyllum Robustum is native to North America and can be found in a variety of aquatic habitats, including ponds, lakes, streams, and rivers. The plant prefers still or slow-moving water with a depth of 1-3 meters. It can grow in both freshwater and brackish water.
Question and Answer
Q: Can Myriophyllum Robustum grow in saltwater?
A: Yes, the plant can grow in brackish water, which is a mixture of saltwater and freshwater.Q: How fast does Myriophyllum Robustum grow?
A: The plant can grow up to 1.5 meters in length and can grow up to 10 cm per week under ideal conditions.Q: What is the best temperature range for Myriophyllum Robustum?
A: The plant thrives in water temperatures between 15-25°C.Q: How often should I fertilize Myriophyllum Robustum?
A: You should fertilize the plant once every 4-6 weeks during the growing season.
Related Plants
Here are some related plants that you might be interested in:
- Myriophyllum Aquaticum
- Myriophyllum Heterophyllum
- Myriophyllum Spicatum
- Myriophyllum Verticillatum
References
- Burkhardt, J., & Burrell, T. (2013). Aquatic plants for water treatment and resource recovery. New York: Springer.
- Reed, C. F. (1988). A field guide to freshwater aquatic plants of the southeastern United States. University of Georgia Press.
- Wagner, W. H. (1991). Aquatic plants of the United States. Smithsonian Institution Press.
