Quick Answer
Reliable resources for learning plant water identification include the U.S. Army's Field Manual 21-76, "Survival," and the National Outdoor Leadership School's (NOLS) Wilderness Survival course materials. These resources provide detailed information on identifying and treating water sources, including plants that can be used to indicate safe drinking water.
Identifying Safe Water Sources
When searching for safe drinking water, it’s essential to identify plants that can indicate the presence of clean water. The cattail (Typha latifolia) is a reliable indicator plant, as it grows in wet environments and its roots can absorb pollutants. The cattail is also a good indicator of water flow, as it will grow in areas with a steady water supply. Additionally, the presence of water cress (Nasturtium officinale) or horsetails (Equisetum spp.) can also indicate a safe drinking water source.
Using Plants to Purify Water
Certain plants can be used to purify water by removing bacteria, viruses, and other contaminants. The most effective plant for water purification is the Sago Palm (Cycas revoluta), which contains a compound that can kill bacteria and viruses. To use the Sago Palm, collect the sap from the plant’s trunk and mix it with the contaminated water at a ratio of 1:10. Let the mixture sit for 30 minutes to allow the sap to take effect.
Additional Tips for Finding Safe Water
When searching for safe drinking water, it’s essential to look for areas with a high water table or where water tends to accumulate. This can include depressions, low-lying areas, or areas near a water source such as a stream or river. Always test the water for quality before drinking it, and use multiple methods to ensure it is safe. This can include using a water filter, boiling the water, or using a plant-based purification method.
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