Mimulus alatus
Mimulus alatus, the sharpwing monkeyflower, is an herbaceous eudicot perennial that has no floral scent. It is native to North America and its blooming season is from June to September. The flowering plant has green foliage and blue to violet flowers. It has a short life span compared to most other plants and a rapid growth rate. Like other monkey-flowers of the genus Mimulus, M. alatus grows best in wet to moist conditions and has a bilabiate corolla, meaning it is two-lipped. The arrangement of the upper and lower lip petals suggests a monkey’s face. The winged stems together with the monkey face give the plant its common name. Taxonomy The genus Mimulus has been removed from Scrophulariaceae and placed in the family Phrymaceae. In the 1990s, DNA sequences from chloroplast and nuclear genomes showed that Mimulus is not monophyletic; Glossostigma, Peplidium, Phryma, Leucocarpus, Hemichaena, and Berendtiella are all derived from Mimulus. As a result, Mimulus and its derived genera have been placed into the subfamily Phrymoideae and the family Phrymaceae. Distribution Mimulus alatus is a native species to eastern North America; its range stretches from Connecticut, down south to Florida and extends as far west as Nebraska and Texas. It is most commonly found in central and lower Mississippi valley, and considered rare in Connecticut, Iowa, Massachusetts, Nebraska, New Jersey, New York and Ontario. Habitat The sharp wing monkey-flower is a perennial that grows best under partial sun exposure and wet to moist conditions. It has been found in a variety of wetland types such as edges of small rivers, swamps, shady stream banks, wet woods, marshes, wet meadows, ditches, springs, etc. Full sun is tolerable but when it is grown in habitats that are too dry and sunny, the sharp wing monkey-flower remains small in size and becomes yellowish green. During its season it can endure occasional flooding and foliar disease is infrequent. It prefers a slightly acidic to neutral soil pH of 5.6-7.5 that contains plenty of organic matter. Temperatures below -23 °F are not survivable. Morphology Individuals of this species can range from 15 cm to 91 cm in height, depending on growth conditions. Its root system consists of taproot and thick rhizomes. The flowers are bisexual and bilaterally symmetrical, and most commonly blue to violet. It has erect, hollow, smooth, square (4-angled) stems that sometimes branch off. There are also thin wings along the angles of the stem. The glabrous opposite leaves in a decussate arrangement are noticeably toothed (dentate to serrate) and are up to 12 cm long and 5 cm wide. They are ovate, lanceolate-ovate, or lanceolate, gradually narrowing to a sharp point at the apex. At the base are narrowly winged petioles about 1.2 cm long. Flowers Flowers occur individually and are 2.5 cm long. Only a few flowers on the same plant are in bloom during the June to September season. The two-lipped corolla is borne from 5 mm pedicels from the upper leaf axils. At the center, or throat, of