The NAKED-FLOWERED TICK-TREFOIL (M. nudiflora; D. nudiflorum of Gray) lifts narrow, few-flowered panicles of rose-purple blooms during July and August. The flowers are much smaller than those of the showy trefoil; however, when seen in masses, they form conspicuous patches of color in dry woods. Note that there is a flower stalk which is usually leafless and also a leaf-bearing stem rising from the base of the plant, the latter with its leaves all crowded at the top, if you would distinguish this very common species from its multitudinous kin. The trefoliate leaves are pale beneath. The two or three jointed pod rises far above the calyx on its own stalk, as in the next species. The POINTED-LEAVED TICK-TREFOIL (M. grandifiora; D. acuminatum of Gray) has for its distinguishing feature a cluster of leaves high up on the same stem from which rises a stalk bearing a quantity of purple flowers that are large by comparison only. The leaves have leaflets from two to six inches long, rounded on the sides, but acutely pointed, and with scattered hairs above and below. This trefoil is found blooming in dry or rocky woods, throughout a wide range, from June to September. Lying outstretched for two to six feet on the dry ground of open woods and copses east of the Mississippi, the PROSTRATE TICK-TREFOIL (M. Michauxii; D. rotundifoliurn of Gray) can certainly be named by its soft hairiness, the almost perfect roundness of its trefoliate leaves, its rather loose racemes of deep purple flowers that spring both from the leaf axils and from the ends of the sometimes branching stem; and by its three to five jointed pod, which is deeply scalloped on its lower edge and somewhat indented above, as well. BLUE, TUFTED, or COW VETCH or TARE; CAT PEAS; TINEGRASS (Vicia Cracca) Pea family Flowers - Blue, later purple; 1/2 in. long, growing downward in 1-sided spike, 15 to 40 flowered; calyx oblique, small, with unequal teeth; corolla butterfly-shaped, consisting of standard, wings, and keel, all oblong; the first clawed, the second oblique, and adhering to the shorter keel; 10 stamens, 1 detached from other 9. Stem: Slender, weak, climbing or trailing, downy, 2 to 4 ft. long. Leaves: Tendril bearing, divided into 18 to 24 thin, narrow, oblong leaflets. Fruit: A smooth pod 1 in. long or less, 5 to 8 seeded. Preferred Habitat - Dry soil, fields, wastelands. Flowering Season - June-August. Distribution - United States from New Jersey, Kentucky, and Iowa northward and northwestward. Europe and Asia.