With erected ears and extended jowls, this gaping, grinning ape of the damp, grassy jungle greets us cutely with its impudent, animated poise, from June to September. If its lower lip is pulled downward and allowed to close again, the operation causes one to experience a strong inclination to yawn. And right here, this same operation fancifully suggests an exaggerated grin that has given rise to its Latin name, which is derived from the Greek, mimus, a small, mimicking ape or buffoon. The square-stemmed Monkey Flower is usually found in moist meadows or swamp land, particularly along cool streams and in company with rank growths of grass and other vegetation peculiar thereto. Here their pertinent, inquisitive flowers seem to strain their tethers in an effort to satisfy their apparent curiosity at one's presence. The attractive blossoms open one or two at a time toward the top of the slender, leafy stalk. Their pale violet or occasionally white corolla appears delightfully cool and cheerful on a hot, midsummer's day, and it is a pleasant relief to come unexpectantly upon them, as is often the case when the path follows along the near bank of a stream. The smooth, hollow stalk is erect and rises from one to three feet in height. Two of its sides are flattened, and the other two are deeply grooved. These flattened surfaces alternate with each pair of leaves. The oblong, or lance-shaped leaves taper to a point, and become narrow toward the base, each with two small flaring lobes where they partly clasp the stalk, upon which they alternate. The margins are finely toothed, and the feather-veined ribbings crease the smooth, green surface. The flowers spring from the axils of the leaves, on partly curved, slender stems, and are set in a deep, five-parted, five-toothed tubular calyx, the uppermost tooth of which is longer than the others. The irregular corolla is two-lipped. The upper lip has two erect lobes which curl backward together, causing a two-eared effect, while the lower lip has three widely flaring lobes, with its centre bulged, forming two small, yellow-patched swellings that close the throat of the tube, which sets into the calyx. Four white, thread-like stamens are seated on the inside of the tube, and their yellow tips meet over the top of the two-lobed pistil. They are arranged in two pairs, one set being shorter than the other. Neither the pistil nor the stamens protrude from the corolla, but may be seen flattened against the hooded crease of the upper lip, if the lower lip is pulled partly open. The texture of the flowers is fine and delicate. This perennial herb ranges from Nova Scotia to Virginia, Tennessee, Manitoba, Nebraska and Texas.