Plant Name
Scientific Name: Tetramerium nervosum
Synonym: Tetramerium hispidum
Common Names: Hairy Fournwort, Tetramerium
Plant Characteristics
Duration: Perennial
Growth Habit: Subshrub, Herb/Forb
Arizona Native Status: Native
Habitat: Desert (upper elevation), Upland
Flower Color: Pale yellow, Cream
Flowering Season: Spring, Summer, Fall. This wildflower mainly blooms after the summer monsoon rains.
Height: To 1 foot (30 cm) tall
Description: The flowers emerge from between leafy bracts on hairy, 4-sided flower spikes. The individual flowers are tubular and have an upper lobe with a central violet patch and a yellow base, 2 side lobes, and a folded, projecting lower lobe. The leaves are green, opposite, and lanceolate in shape.
Classification
Kingdom: Plantae – Plants
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta – Flowering plants
Class: Magnoliopsida – Dicotyledons
Subclass: Asteridae
Order: Scrophulariales
Family: Acanthaceae – Acanthus family
Genus: Tetramerium Nees – tetramerium
Species: Tetramerium nervosum Nees – hairy fournwort
More About This Plant