Bolander’s Water-starwort

Callitriche heterophylla ssp. bolanderi, commonly known as Bolander’s Water-starwort, is a perennial aquatic plant native to the wetlands and shallow waters of the western United States, particularly in California and Oregon. This species typically grows in submerged or partially submerged conditions, reaching heights of 10 to 30 centimeters. It exhibits a distinctive growth habit with slender, branching stems that can spread horizontally, forming dense mats in suitable habitats. The leaves are alternate, linear to lanceolate, and can vary in shape, which is a notable characteristic of this subspecies. Flowers are small and inconspicuous, usually blooming in the summer, followed by the production of small, oval seeds that are dispersed by water movement, contributing to its spread in aquatic environments.