Rock tripe – edible wild plant – how to find, identify, prepare, and other uses for survival.

Rock tripe plant (Umbilicaria species)

The Rock Tripe plant is a lichen that forms large patches with curling edges. The top of the plant is usually black. The underside is lighter in color.  It typically grows on rocks.

Where to find Rock tripe plants in the wild

Look on rocks and boulders for this plant. It is common throughout North America, especially in New England and the Rocky Mountains.

Here are some tips for finding rock tripe plants in the wild:

1. Look for rocks: As the name suggests, rock tripe grows on rocks, so you’ll need to find rocky areas to search for it. Look for rocky outcroppings, cliffs, and boulders.
2. Choose the right environment: Rock tripe prefers damp environments, so you’re more likely to find it in areas that get plenty of rain or near bodies of water like streams and rivers.
3. Check the color: Rock tripe can be a range of colors, including gray, green, and brown. Look for lichen on rocks that matches these colors.
4. Use your nose: Rock tripe has a distinctive smell that some people describe as earthy or musky. If you smell something like this while you’re out foraging, it’s worth investigating further.
5. Know your seasons: Rock tripe is generally more abundant in the spring and fall, so these are the best times to look for it.

Edible parts of the Rock tripe plant

The entire plant is edible. Scrape it off the rock and wash it to remove grit. The plant may be dry and crunchy; soak it in water until it becomes soft. Rock Tripes may contain large quantities of bitter substances; soaking or boiling the plant in several changes of water will remove the bitterness.  The plant has a bland taste, much like pasta or dumplings.

Note: Some lichens do contain toxic substances and even Rock Tripe can cause stomach cramps.  The bitter substances may cause stomach aches if too much is consumed.  Leach Rock Tripe overnight and boil it thoroughly to remove the bitter substances.

Other uses for Rock tripe plants

Apart from being a source of food, rock tripe plants have several other uses. Here are some of them:

1. Medicinal Uses: Rock tripe plants contain usnic acid, which has antibiotic and antiviral properties. It is used to treat infections, fever, and inflammation. It is also used to treat wounds, burns, and skin conditions.
2. Dyeing: Rock tripe plants are known to produce a purple dye when boiled in water. This dye was traditionally used to color wool and other textiles.
3. Fire Starting: Dry rock tripe can be used as tinder to start a fire. The thin, papery texture of the plant makes it easy to ignite.
4. Insulation: The thick, spongy texture of rock tripe plants makes them suitable for insulation. They can be used to insulate homes or as padding in clothing.