There are a multitude of nutritious edible plants everywhere
in nature. While time of year and location may affect availability, there is
nearly always something for us to eat when we're out in the woods and fields.
Due to the risk of misidentification, I'm not going to be
covering mushrooms in this article. The difference between nutrition and
mortician can be very, very subtle. As the saying goes, "Every mushroom is edible, but some are edible only once."
Books
Smartphone Apps
iNaturalist is a useful app, available for both
Android and
iPhone, which is a
cooperative database of plant identification. Users can query the existing
information as well as upload their own discoveries and photos. As a resident of Tennessee, though, I particularly like the more specialized
Tennessee Wildflowers app. The name is somewhat deceptive, as it isn't only about flowering
plants, nor limited to the boundaries of just one state; it contains data
on nearly 3,500 species of plants found in Tennessee and the surrounding areas, only about
half of which are wildflowers. One of the better features of this app is that the
database is local to the device, so it's useable even in areas of poor service.
Websites
There are also a number of plant identification sites on the web. Some are good, some not so
good. One of my personal favorites is called
Eat the Invaders, which is all
about edible invasive species. It's useful information with a sense of humor.
The Texas Real Food website, contrary to the name, has
edible plant information indexed by state, but be warned that much of the information on
the site is contained in videos. As usual, the
Cornell Cooperative has a lot of useful
information on their website.
Differences
An important detail to keep in mind is that some parts
of the same plant may be more or less healthy to eat than others, or the same part may be
more nutritious at different parts of its life cycle, or may require some preparation
for best use.
With cattails, for example, the young shoots, flowers, and
pollen are best in the spring, while the stalks and roots are best in the fall. As a bonus feature, the head of a ripe cat tail dipped in oil or wax can make a useful
torch, and the fluff can be used as tinder for fire starting.
Similarly, nettles, (which are a source of Vitamins A, C, K,
iron, calcium, and more) should be cooked before eating to deactivate the mild
toxin in the stinging hairs. Use gloves when handling to avoid skin irritation.
Dandelions are a ubiquitous weed found almost everywhere in
the continental United States. Harvesting them young (before the flowers erupt from
their buds) is best, though they should be boiled in salted water to reduce the
bitterness. The roots can be used for a
tisane or tea substitute, and the
leaves of the flower can be added to enhance salads.
A Final Word
It's a very good idea to use more than one source, and to compare them, when identifying plants for edibility, just in case one of the sources is in error.
Eat safely, and eat well.