SafePlants

Water Hyacinth (Eichhornia crassipes)

The Water Hyacinth, scientifically known as Eichhornia crassipes, is also referred to as lechuguilla or Floating Macrophyte.

Considerations for Pets

• Water hyacinth is a free-floating plant, and its roots do not anchor in the substrate. If ingested, consider the possibility of stomach upset, especially with the stout root hairs.
• Leaves are described as leathery and can extend up to 50 cm in length.

Taxonomy and Nomenclature

• Scientific Name: Eichhornia crassipes
• Family: Water Hyacinth Family (implied)
• Synonyms: Eichhornia diversifolia (Variable Leaf Water Hyacinth) is mentioned, suggesting other synonyms exist.

Distribution and Habitat

• Native to South America, specifically Brazil being the most likely place of origin.
• Has naturalized in many regions worldwide.
• Observed growing in Manila harbor, Philippines.

Morphological Characteristics and Growth Habits

• Free-floating perennial aquatic plant.
• Can grow to a height of 3 feet.
• Plant size is highly variable; seedlings have small leaves, while mature plants with ample nutrients can be much larger.
• Possesses numerous roots with stout root hairs.
• Leaves are described as leathery, suborbicular, ovate, or broadly elliptic, with heart-shaped bases and parallel veins. They are thick, waxy, rounded, and glossy, and can extend up to 50 cm in length.
• Rhizomatous and stoloniferous, with long, pendant, and adventitious roots.
• Leaves arise from rhizome nodes and stand above the water.

Ecological Role

• Considered an invasive non-native plant in some regions.
• Forms dense mats in aquatic environments.
• Infestations can have negative impacts.

Interactions with Other Organisms

• Susceptible to infection by Alternaria alternata, leading to lesions and chlorosis in leaves.

Quirky Facts

• The stems may be 50 cm long and contain variable amounts of air, which enable the plant to float.