Murdannia keisak
Murdannia keisak - Image 2

Murdannia keisak

$13.99

Portion Size (you'll receive at least)
8+ stems

Murdannia keisak, also known by several common names including Asian Spiderwort, Marsh Dewflower, Wartremoving Herb, and Aneilema, is an aquatic plant gaining popularity in the aquarium hobby. Native to the warmer regions of Asia, including China, Japan, Korea, and parts of Southeast Asia, it is typically found in marshy areas, rice paddies, along the edges of ponds and streams, and in floodplains. This plant is adaptable and can grow both submerged and emersed.

1 in stock. Ships from Richmond, BC.

Note: Pictures are for reference only, and may not look exactly the same.

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Description

Murdannia keisak is a stem plant with narrow, light green leaves, often exhibiting purple hues, that are arranged in an alternate, two-line pattern along the stem. Underwater, the stems are strictly upright with pronounced nodes, giving them a bamboo-like appearance. The leaves typically grow up to 5 cm long and 1 cm wide, with stems around 3 mm thick. In its emerged form, the stems can be low-lying to ascending. Small, three-petaled flowers, which can be white, pink, blue, or purple, may bloom in late summer to early fall.

Care

Murdannia keisak is considered to have a medium to moderate difficulty level for care in an aquarium setting. Adequate nutrient levels are beneficial for healthy growth, and a substrate rich in nutrients is recommended.

Propagation

Murdannia keisak can be propagated through seeds, cuttings, and division. Stem cuttings are a common method; healthy stems should be cut below a node, the lower leaves removed, and the cutting placed in water or moist soil/soilless mix until roots develop. Division of mature plants can be done in early spring. The plant can also reproduce vegetatively from stem and root fragments.

Trimming

Murdannia keisak is a fast-growing plant that requires regular trimming to maintain shape and encourage bushier growth.

Notes, Tips, and Considerations

  • In some areas, Murdannia keisak has become naturalized and is considered invasive due to its ability to spread aggressively and outcompete native vegetation, forming dense mats.
  • Reddish shoot tips can develop under strong light and CO2 supplementation.
  • Emersed plants may produce small white, pink, blue, or purple flowers in late summer to early fall.

Origin

  • Regions
    • Asia
      • Directions: East, South
      • Countries: China, Japan, Korea
  • Environment
    • Habitat: marsh, river, lake, pond, wetland
    • Water Type: freshwater
    • Water Depth: 0.1 – 0.5 m
    • Water Flow: still, slow, moderate
    • Light: medium, high
    • Temperature: 18 – 30 °C
    • Humidity: high
    • Substrate: soil, mud

Closing

Murdannia keisak is a versatile and attractive plant for freshwater aquariums, providing dense growth that can offer shelter for small fish and invertebrates.

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