Botany in a day : the patterns method of plant identification : Thomas J. Elpel's herbal field guide to plant families

The Audubon Society field guide to North American wildflowers, western region

National Audubon Society field guide to North American wildflowers : western region

National Audubon Society first field guide to wildflowers

Peterson first guide to trees

Field guide to North American edible wild plants

The private life of plants : a natural history of plant behaviour

The plants of Pennsylvania :an illustrated manual

A field guide to venomous animals and poisonous plants, North America, north of Mexico

Reader's Digest North American wildlife

A history of herbal plants

A field guide to medicinal plants and herbs of eastern and central North America

A guide to enjoying wildflowers

A field guide to tropical and subtropical plants

Flower families and ancestors

Root, leaf, bud and berry : a collection of plants from Central Pennsylvania

A field guide to trees and shrubs : northeastern and north-central United States and southeastern and south-central Canada

Native wild plants of Northeastern United States and Eastern Canada

Wildly successful plants : a handbook of North American weeds

Sybil Leek's book of herbs

Plant medicine and folklore

A field guide to reptiles & amphibians : eastern and central North America

Edible wild plants of Pennsylvania and neighboring states

A field guide to trees and shrubs; field marks of all trees, shrubs, and woody vines that grow wild in the northeastern and north-central United States and in southeastern and south-central Canada

Field guide to weeds : based on Wildly successful plants

The tracker's field guide : a comprehensive manual for animal tracking

Plants of the Bible

Bizarre plants: magical, monstrous, mythical

Scenic science of the national parks : an explorer's guide to wildlife, geology, and botany

North American trees (exclusive of Mexico and tropical United States) A handbook designed for field use

A field guide to freshwater fishes : North America north of Mexico

Plant and planet

Plant Science : An Introduction To Botany. Disc 3 & 4

Plant Science : An Introduction To Botany. Disc 1 & 2

A field guide to birds' nests of 285 species found breeding in the United States east of the Mississippi River

The easy tree guide : common native and cultivated trees of the United States and Canada

How to know the ferns; a guide to the names, haunts, and habits of our common ferns

Potter's new cyclopaedia of medicinal herbs and preparations

The new field book of American wild flowers

Flowers : a guide to familiar American wildflowers

The everything guide to foraging : identifying, harvesting, and cooking nature's wild fruits and vegetables