About Collinsia concolor Greene
Collinsia concolor Greene is an annual herb that grows an erect stem reaching up to around 45 centimeters tall. Its leaves are arranged oppositely; each leaf is broadly linear in shape, flat, and may have slight toothing along the edges. The inflorescence is covered in hairy glands, and forms an interrupted sequence of dense whorls of flowers. Each individual flower measures between 1 and 1.5 centimeters long, has a hairy base, and a corolla split into two upper lobes and three lower lobes. The flower ranges in color from blue to purple, with a clearly purple-dotted white area on its upper lobes. The middle lobe out of the three lower lobes has a hairy tip.