Rangeland Pest Control Practice Test

The key idea is recognizing a plant by how its flowers are arranged and what the leaves and stems feel like. Dense clusters of white flowers that come in large, conspicuous groups, combined with a waxy, glossy (glaucous) appearance of the leaves and stems, point to perennial pepperweed. This plant forms tall, branched inflorescences packed with small white flowers in spring, and the smooth, waxy surface on the foliage helps distinguish it from other white-flowering weeds.

Field bindweed makes single funnel-shaped flowers along a creeping vine, not dense clusters. Tamarisk has feathery, gray-green foliage and different flower structures, not the same dense white clusters with a waxy leaf/stem look. Hoary cress also produces white flowers in dense clusters, but its leaves are typically more grayish and the plant’s overall texture and growth habit differ from pepperweed’s glossy, waxy appearance.