Water caltrops are an aquatic plant known for their edible, starchy seeds. They have a unique shape—often horned or resembling a bat—which makes them stand out from other water plants.
Scientific Name
- Trapa natans (common water caltrop)
Description
- Grows in freshwater lakes, ponds, and slow-moving rivers.
- Produces hard, dark seeds inside a spiky shell.
- Seeds are edible after cooking and have a crunchy, starchy texture similar to chestnuts or water chestnuts.
Nutritional Value (per 100g cooked seeds)
- Calories: ~100–150 kcal
- Carbohydrates: ~25–30 g
- Protein: ~4–5 g
- Fiber: ~2–3 g
- Vitamins & Minerals: Small amounts of vitamin B, iron, magnesium, and potassium
Culinary Uses
- Boiled or Steamed – Peel and eat as a snack.
- Roasted – Like chestnuts, they develop a nutty flavor.
- Soups and Stews – Adds texture to Asian-style soups.
- Desserts – Used in some traditional Chinese festive dishes.
Fun Facts
- Eaten for thousands of years in India, China, and Southeast Asia.
- Sometimes called “bat nuts” due to their horned appearance.
- Seeds are hard when raw, so cooking is necessary for safe digestion.
💡 Tip: When cooking, score the shell slightly to prevent splitting and to make peeling easier.
If you want, I can make a quick 3-step guide for cooking water caltrops as a snack or in dishes, so you can enjoy them safely and easily.
Do you want me to make that guide?