Flora of North America : North of Mexico, Volume 25: Magnoliophyta: Commelinidae (in Part): Poaceae, Part 2 9780195167481 Used / Pre-owned - Walmart.com
Plant Taxonomy | Let's Talk Science
Invasion Biology Introduced Species Summary Project - Columbia University
Angiosperm | Definition, Reproduction, Examples, Characteristics, Life Cycle, Taxonomy, & Facts | Britannica