Oregon Forestry Pesticide Applicator Practice Exam

Which plant type typically has a fibrous root system?

Grass Broadleaf Woody plants Vines

Correct Answer:

Grass

Explanation:

Fibrous root systems are dense networks of many thin roots that spread near the soil surface, providing quick nutrient uptake and good soil stabilization. Grasses are typically monocots and grow with crown-originating roots that branch into numerous fine roots, forming that widespread mat near the surface. This contrasts with many broadleaf plants, which often develop a single primary root that grows downward (a taproot) with laterals, and with woody plants that rely on sturdy, deep-rooted systems for strong anchorage. Vines can have a variety of root types, but the classic example of a fibrous system is grasses.

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