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Saturday, July 4, 2015

The Healthy Mile -- Edible Plants Along The Highway

This year, on the July long weekend, I took a walk along Highway 317 in Manitoba. It is a relatively barren route, on a sand hill formed by the old Lake Agassiz’s retreat. Nearby is the Libau bog, and the area is primarily a pine forest. Yet, in the first mile, I found so many edible plants on that national holiday that I could have eaten for weeks with ample nutrition.
To start with, the various wild grasses and grains are already forming their seeds, providing a starch and flour base. Awned wheatgrass grows here, and also can be eaten.
The edge of the highway is adorned with both yellow and white sweet clover flowers. The flowers, young shoots and leaves are all edible, and many people eat the roots. However, if the clover has become mouldy due to excess moisture after cutting, coumarin forms. This can be toxic in large doses, and livestock have died from eating rotted clover. Purple clover flowers make a great tea, and can be dried for winter use.
Much like the purple clover, volunteer alfalfa grows along the ditches. Although it is not truly a wild plant, it has spread from farmer’s trucks hauling seed along 317.
Of course, the pine forest can be part of the main course, too. Pine needles and seeds are edible (although the seeds arrive much later). A few diehards eat the buds that form and fall in May & June. These little rust-coloured buds look too much like the pine beetles that infest the area for my liking.
Both yellow and pink lady slippers are abundant. Like the Western Red Lily (Tiger lily), the roots and flowers are edible, but they are much too attractive to destroy!  On the other hand, many reports suggest that the bluebell is poisonous, although no fatalities have been reported.
As I walked along, I stopped often to snack on the tiny alpine strawberries that are so abundant in these wastelands.
For spices, prairie sage (looking very much like tame sage) and wild bergamot are abundant.  An odd plant, goatsbeard produces a relatively small yellow flower like the dandelion, but a massive feathery seed ball, five to ten times the size of a dandelion. This plant, too, is edible (the root).
Goldenrod is just coming into bloom. This plant has many uses, as does dandelion. A noxious weed, tansy is invading the province but, in moderation, can be eaten.
Horsetail, with its high silica content, is a great medicinal plant, but far too gritty to enjoy as an edible. On the other hand, take a lesson from cattle and horses, and don’t even think about eating foxtail. Its feathery fronds tear at stomach linings and can cause severe bleeding.
Other flowers, like the hairy puccoon and large leaf aster, also are used in culinary preparations, but one of the most versatile is the cattail. Its root is a potato, a thickener, a vegetable. Its young shoots are asparagus or boiled greens while its fluffy seed pod has been used as a base on which to sleep.

Many of the plants have both medicinal and culinary uses. Few are harmful. I guess these native plants are just like Manitoba residents: sometimes bland, almost always good for you and very rarely noxious!

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