Snail Trefoil. Medicago orbicularis.

From the south of Europe. It is a hardy, annual plant, with reclining steins, compound or winged leaves, and yellow flowers. The pods, or seed-vessels, are smooth, and coiled in a singular and remarkably regular manner. As they approach maturity, they gradually change to a dark-brown color; and, seen from a short distance, have the appearance of snails feeding on the plant.

The seeds are large, flat, somewhat kidney-shaped, of a yellowish-brown color, and retain their powers of germination five years. They are usually sold in the pods, but should be taken out before planting.

Sowing and Culture.--It is propagated by seeds, which should be sown in April or May where the plants are to remain. Sow in drills fifteen inches apart. The plants should be thinned out where they are too close, and kept clean from weeds; which is all the culture they require. They will blossom in July, and the seeds will ripen in autumn.

Use.--Though entirely inoffensive, no part of the plant is used for food. The pods resemble some species of snails in a remarkable degree, and are placed on dishes of salad for the purpose of exciting curiosity, or for pleasantly surprising the guests at table.

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