Mineral Wildflower Festival

Technical Name

• Castilleja miniata

Informal Names

• Giant red paintbrush

• Common red paintbrush

• Great red paintbrush

• Indian paintbrush

Key Characteristics

• The "Paintbrush" Spike: Features an erect, terminal cluster that looks like it has been dipped in bright orange-red or crimson paint. The brilliant color comes from leafy, petal-like bracts that overshadow and hide the actual flowers.

• Foliage: The leaves are bright green, narrow, lance-shaped, and typically entire (smooth-edged without lobes), alternating along a sturdy, slender, unbranched stem.

• Growth Habit: An erect, clump-forming perennial herb that can grow anywhere from 1 to 3 feet tall, rising gracefully above surrounding meadow grasses.

Notable Significance

• Hemiparasitic Nature: Paintbrushes are fascinating "partial parasites." While their green leaves can photosynthesize, their root systems produce specialized structures called haustoria that tap into the roots of neighboring plants (often grasses, like those surrounding it here) to steal water and vital nutrients.

• Hummingbird Favorite: The bright red-orange color spectrum combined with the tubular structure of the true flower makes this plant a premier energy station for migrating hummingbirds, who serve as its primary pollinators.

• Ethnobotanical History: Various Native American tribes used paintbrush species with care; some utilized the flowers as a colorful condiment or traditional love charm, though the roots and green parts can absorb toxic levels of selenium from certain soils.

Locations Found

• Habitat: Thrives in moist, sun-drenched environments including mountain meadows, forest clearings, stream banks, and low-lying roadside ditches that trap winter snowmelt.

• Elevation Range: Extremely common in the montane and subalpine zones of northern California, flourishing beautifully at elevations between 3,000 and 10,000 feet throughout the Cascades and Sierra Nevada.