Hippuris vulgaris—commonly called mare’s tail—is a small aquatic plant found in ponds, lakes, and slow-moving water.
What it looks like
- Thin, upright stems (often sticking above the water surface)
- Whorls of narrow leaves around the stem, giving a “bottle-brush” look
- Usually 10–50 cm tall
Where it grows
- Native to Europe, Asia, and North America
- Prefers shallow, still or gently flowing freshwater
- Often rooted in mud along pond edges
Key characteristics
- Can grow both submerged and emergent
- Helps oxygenate water and stabilize sediment
- Provides shelter for small aquatic organisms
Uses
- Common in natural ponds and aquariums (especially cold-water setups)
- Used in ecological restoration to improve water quality
- Not typically used as food (unlike bitter gourd you asked about earlier)
Important note
Don’t confuse it with similar-looking aquatic plants—some may be invasive or behave very differently in managed ponds.
If you want, I can explain how to grow it in a home pond or how it compares to other oxygenating plants.