Polygala macradenia – Glandleaf Milkwort

Polygala macradenia - Glandleaf Milkwort, Gland-leaf Milkwort, Purple Milkwort (flower)

Polygala macradenia - Glandleaf Milkwort, Gland-leaf Milkwort, Purple Milkwort

Polygala macradenia - Glandleaf Milkwort, Gland-leaf Milkwort, Purple Milkwort

Plant Name

Scientific Name: Polygala macradenia

Common Names: Glandleaf Milkwort, Gland-leaf Milkwort, Purple Milkwort

Plant Characteristics

Duration: Perennial

Growth Habit: Subshrub

Arizona Native Status: Native

Habitat: Desert, Upland. This non-showy wildflower grows in open areas in rocky, often limestone soil.

Flower Color: Purple

Flowering Season: Late spring, Summer, Early Fall

Height: Up to 8 inches (21 cm) tall

Description: The tiny, winged flowers have 2 purple, petal-like, round-tipped, projecting, lateral sepals and a central tube of fused, white and yellow petals. This unusual flower shape is typical of Polygala species. The flowers are followed by hairy, gland-dotted, oblong to narrowly egg-shaped seed capsules. The leaves are small, thick, green, densely hairy, gland-dotted, and oblong, narrowly egg-shaped, to broadly lance-shaped. The numerous, crowded stems are densely leafy, ascending to erect, green and densely hairy near the tips, and brown, woody, and shrub-like at the base of the plant.

Classification

Kingdom: Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta – Flowering plants
Class: Magnoliopsida – Dicotyledons
Subclass: Rosidae
Order: Polygalales
Family: Polygalaceae – Milkwort family
Genus: Polygala L. – polygala
Species: Polygala macradenia A. Gray – glandleaf milkwort

More About This Plant

Arizona County Distribution Map