The square-stemmed monkeyflower, scientifically known as Mimulus ringens, is a rhizomatous perennial characterized by its square stem, opposite, lanceolate to oblong leaves, and two-lipped, blue-purple flowers that resemble a monkey\’s face. Stem: Erect, square, sometimes branching, and can grow up to 1-3 feet tall.Leaves: Opposite, lanceolate to oblong, sharply toothed, and clasp the stem.Flowers: Two-lipped, blue-purple (sometimes pink or white), snapdragon-like, and appear in pairs in the leaf axils.Habitat: Prefers wet areas like wet meadows, swamps, stream and pond borders, and low woods.Other names: Allegheny monkey flowerScientific name: Mimulus ringensBloom Period: June to SeptemberHeight: 2 feetSoil: Medium to wetSun exposure: Full sun to part shade