Diplacus parviflorus, commonly known as Island Bush Monkeyflower, Smallflower Monkeyflower, or Little Red-Stem Monkeyflower, is a perennial shrub native to chaparral, coastal sage scrub, and riparian zones in Oregon and California. It typically grows at a moderate rate to a height of 0.5-1.5 feet (0.15-0.5 meters) and is known for its compact form and herbaceous nature. The plant features narrow, lance-shaped leaves and produces tubular, yellow flowers with reddish-brown spots inside, which are particularly showy in the spring and summer months. The flowers are attractive to pollinators such as bees and hummingbirds.

Diplacus parviflorus is valued for its vibrant flowers and ability to attract wildlife, making it a suitable choice for native plant gardens, pollinator gardens, and restoration projects. It is also used for slope stabilization and erosion control due to its spreading habit. This monkeyflower prefers full sun to part shade and thrives in well-draining sandy or loamy soils. It is drought-tolerant once established, requiring only moderate watering. While generally low-maintenance, it can be susceptible to fungal diseases in overly moist conditions.CC BY-SA 4.0