Dwarf Hairgrass, Needle spikerush

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Eleocharis acicularis - (Roemer and Schultes, 1817)
Dwarf Hairgrass, Needle spikerush

Eleocharis acicularis. MP and C. Piednoir


This is a grassy herb that grows flowering stems without true leaves. The flowers, that grow emersed are tiny, white blossoms that show up from June to October.

Family: Cyperaceae

Other common name(s):

  • Needle Spikerush.

Native range:

Habitat: Moist shoreline areas. pH: neutral to slightly acidic; hardness: moderately soft to moderately hard.

Maximum height: 50 cm (20 in)

Lighting: intense

Water: Freshwater 18 °C (64 °F) - 28 °C (82 °F)


No special requirements.

Special Care

Keep the water flow fairly slow, but keep debris out of the “lawn.” Corydoras catfishes will help keep the rushes clear of waste matter that could smother the plant. Be careful of mosses and algae that are apt to become entangled with the Hairgrass and could smother it. Remove the strange plants manually.


Runners. Dense plantings can be separated and replanted, which will result in a growth spurt for all the plants.


Dwarf Hairgrass is very highly thought of by the admirers of Mr. Takashi Amano’s style of aquascaping, where natural scenes are artistically reproduced in the aquarium by different plant species. Contrast in shape and color is celebrated through the use of metaphor. In one design, the Hairgrass is placed so it looks like rushes at the edge of a pond and the small, dark fishes swimming above simulated a flock of shore birds.

Reference: 101 Best Aquarium Plants
Image credit: MPCP
Text credit: MES