Native grasses - Legumes and forbs - Section 1 of a series - Pasture and range plants (26p.) - Native grasses - Legumes and forbs - Section 2 of a series (37p.) - Undesirable grasses and forbs - Section 3 of a series (45p.) - Poisonous grassland plants - Section 4 of a series (25p.) - Introduced grasses and legumes - Section 5 of a series (25p.) - Introduced grasses and legumes - Section 6 of a series (25p.). (Phillips Petroleum Company, 1955)