Trixis californica – American Threefold

Trixis californica - American Threefold, Trixis

Trixis californica - American Threefold, Trixis

Plant Name

Scientific Name: Trixis californica

Common Names: American Threefold, Trixis

Plant Characteristics

Duration: Perennial

Growth Habit: Shrub, Subshrub

Arizona Native Status: Native

Habitat: Desert, Upland. This wildflower grows on rocky slopes.

Flower Color: Yellow

Flowering Season: Spring. It typically blooms in the springtime, but it can bloom sporadically at other times of the year.

Height: To 3 feet (91 cm) tall

Description: The flower heads are rayless, 3/4 inch (1.9 cm) wide, and surrounded by green, leaf-like bracts. The flowers are followed by seed heads with straw-colored bristles. The leaves often have curled-under margins and are dark green, alternate to whorled, lanceolate in shape, and up to 2 inches (5 cm) long.


Kingdom: Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta – Flowering plants
Class: Magnoliopsida – Dicotyledons
Subclass: Asteridae
Order: Asterales
Family: Asteraceae – Aster family
Genus: Trixis P. Br. – threefold
Species: Trixis californica Kellogg – American threefold

More About This Plant

Arizona County Distribution Map