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Eriocaulon sp. "Japan Needle Leaf"
Eriocaulon sp. "Japan Needle Leaf"
Elegant midground rosette plant from Japan featuring narrow, dark green needle-like leaves. Requires strong lighting, CO2, and nutrient-rich aquasoil to thrive.
Class:Liliopsida
Order:Poales
Family:Eriocaulaceae
Genus:Eriocaulon
Species:Eriocaulon sp. "Japan Needle Leaf"
Formerly known as:
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Water Temperature
21 - 26 °C
pH Value
5 - 7
Water type
Freshwater
Light
Medium - High
CO2
High
Expected height
40 cm
Expected width
20 cm
GH
0 - 10 dGH
KH
0 - 12 dKH
Species description
Geographical Origin and Habitat: This selection comes from humid and aquatic environments in Japan. It grows in cool, clear, flowing waters, often on sandy substrates rich in organic matter along the margins of small rivers and mountain springs.
Taxonomy & Genetics: It belongs to the Eriocaulaceae family, genus Eriocaulon. Species of this genus are famous for their specific requirements and geometric shape. The 'Japan Needle Leaf' variety is prized for its exceptionally narrow leaf shape.
Physical Structure: It develops a dense and compact rosette from which numerous very thin and pointed leaves radiate. The plant looks like a green sea urchin, with a robust and deep root system in proportion to the aerial part.
Color & Texture: The leaves have a uniform dark green or forest green coloration. The texture is rigid and needle-like, creating a defined geometric structure that stands out clearly compared to other plant textures.
Care, breeding and tankmates
Lighting & CO2: Requires strong lighting to maintain the compactness of the rosette. Consistent CO2 supply is essential to prevent the plant from decaying.
Nutrition & Substrate: A substrate very rich in nutrients (such as aquasoil) is fundamental, as it absorbs most of its nutrients through the roots. Root fertilization is recommended.
Water Chemistry: Requires very soft (low KH, preferably 0-4) and acidic water (pH 5.0-7.0). The optimal temperature must be cool and stable, between 21 and 26 °C.
Space Management & Placement: Place in the midground or foreground as a focal point. It grows slowly, so it does not require frequent relocation.
Pruning: It is not pruned in the classic sense. Only yellowed or damaged outer leaves at the base of the rosette are removed with sharp scissors.
Risks & Diseases: It is highly sensitive to sudden changes in chemical parameters and organic buildup on the substrate. Root rot is the main risk in compacted substrates.
Geographic Origin and Distribution
This selection comes from humid and aquatic environments in Japan. It grows in cool, clear, flowing waters, often on sandy substrates rich in organic matter along the margins of small rivers and mountain springs.
Origin
East Asia
Plant profile
- Placement
- No verified data available
- Botanical form
- No verified data available
- Growth
- No verified data available
- Substrate
- No verified data available
- Column fertilization
- No verified data available
- Root fertilization
- No verified data available
- Trimming
- No verified data available
- Propagation
- No verified data available
- Nutrients
- No verified data available
- Sensitivity
- No verified data available
- Layout role
- No verified data available
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Recommendations grouped by close relatives, companion choices, and similar care.
