Wolffia angusta Landolt

• Genus: Wolffia
• Botanical Background: First described by Landolt, this species has attracted interest from botanists specializing in aquatic flora and the unique adaptations of duckweeds.

• Geographical Range: Native to tropical and subtropical regions, Wolffia angusta is found in calm, freshwater bodies around the world.
• Environment: It naturally thrives in water with moderate nutrient levels, gentle currents, and stable pH, making it well suited to both natural ponds and controlled aquatic setups.

Leaves

• Lacks distinct leaves; forms a tiny, nearly spherical thallus

• Uniform green coloration across the surface

Inflorescence (Spadix & Spathe)

• Microscopic inflorescence embedded within the frond

• Subtle green tones with no notable scent

• Pollination occurs primarily through self-pollination or wind

Growth Habit

• Free-floating aquatic plant with no true stem

• Rudimentary roots reflect full adaptation to freshwater environments

Light Requirements

• Thrives in bright, indirect light or under gentle artificial lighting

• Avoid harsh direct sunlight to prevent stress

Watering & Humidity

• Requires constant immersion in clean, fresh water

• Stable moisture levels are essential for healthy growth

Soil & Potting Mix

• Soil not applicable; best grown in shallow trays, aquariums, or outdoor ponds

• Fresh water serves as the primary medium

Temperature & Fertilizer

• Ideal temperature range is 68–86°F (20–30°C)

• Occasional liquid fertilization in water supports growth without excess nutrients

Division

• Propagates rapidly through vegetative division

• Clonal growth allows continuous spread without intervention

Stem Cuttings (if applicable)

• Not applicable; plant lacks stems and does not require cuttings for reproduction

Seeds

• Rarely used; seed propagation is uncommon due to the plant's efficient asexual reproduction

Typical Issues

• Poor water quality can lead to algae overgrowth or fungal infections

• Imbalanced nutrients may contribute to decline or contamination

Treatment Recommendations

• Maintain clean water conditions with regular changes

• Use organic treatments and water quality adjustments instead of harsh chemicals

• Recognized as one of the smallest flowering plants on Earth

• Plays a valuable role in scientific studies on plant structure and aquatic ecosystems

• Rapid growth and tiny size make it ideal for small ponds, aquariums, or research setups

• Popular among enthusiasts for its novelty and ease of cultivation in water environments

Wild Population Status

• Not considered widely endangered

• Local populations may be affected by water pollution and habitat degradation

  
  

Market Availability

• Typically found through specialized aquatic plant suppliers or research institutions

• Rarely available in mainstream nurseries or garden centers