The Finders Series of Field Guides

The Finders series from Nature Study Guild Publishers includes 22 guides to identifying native plants and animals of the United States and Canada. These 4"x6" pocket-sized books are intended to be used in the field. They are illustrated with black-and-white line drawings and one accent color. The plant books are all dichotomous keys. See FAQs about our plant books for more about the key format.

For information about ordering by mail or with a purchase order, please email us at naturebooks@worldnet.att.net The Finders series includes books for several regions of North America.

Books for the Pacific Coast Region . . . and for U.S. and Canada East of the Rockies

Books for the Rocky Mountains and Great Basin . . . and the Southwestern Deserts

Our new Finder book for star gazers:Constellation Finder

Books for the Pacific Coast region

Pacific Coast Tree Finder: a Pocket Manual for Identifying Pacific Coast Trees, by Tom Watts. Second edition. The classic key to identifying native trees of the Pacific Coast region. Second edition updated to reflect changes in the accepted names of trees; conforms to the University of California's Jepson Manual. Key identifies native trees, and some commonly introduced non-natives, by their leaves and needles. Covers the Pacific Coast region from Baja to British Columbia, from the western slopes of the Cascades and Sierra Nevada to the coast. (In the deserts of Southern California, use the Desert Tree Finder. To the east, use the Rocky Mountain Tree Finder.) Includes range maps and information about habitat.
ISBN-13 978-0-912550-27-5, ISBN-10 0-912550-27-9, 64 pages, $3.95. Buy It
Get ten copies of Pacific Coast Tree Finder for the price of nine, $35.55. Buy It

Pacific Coast Berry Finder: a Pocket Manual for Identifying Native Plants with Fleshy Fruits by Glenn Keator, PhD, illustrated by Jeanne C. Koelling. Dichotomous key identifies plants with fleshy fruits (pomes, drupes, aggregates, accessory fruits, or true berries in botanical language). Includes the familiar plants that we think of as berries, like Raspberry or Wild Grape, but also many other plants with fleshy fruit, such as Ceanothus, Junipers, Prickly Pear, and Yucca. (Many of the plants identified have fruit that is known or suspected to be poisonous. This is not a guide to edible plants.) Covers California, Oregon and Washington, and would also be useful in BC, although the range maps stop at the border. Includes all native genera and some naturalized ornamentals.
ISBN-13 978-0-912550-02-2, ISBN-10 0-912550-02-3, 64 pages, $3.95. Buy It
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Redwood Region Flower Finder, A Guide to Identifying Wildflowers of the Coastal Fog Belt of California by Phoebe Watts, illustrated by Sarah Watts. Second edition. Dichotomous key identifies wildflowers that grow within the range of the Redwood tree, Sequoia sempervirens, which grows in the coastal fog belt along the Pacific Coast from central California to southwest Oregon. Within that range includes flowers of the shady forest, forest edges, and open, sunny areas. Illustrated with line drawings that clearly show important features of plant structure for accurate identification.
For this new edition, scientific names and plant families updated to conform with The Jepson Manual.
ISBN-13 978-0-912550-25-1, ISBN-10 0-912550-25-2, 64 pages, $3.95. Buy It
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Pacific Coast Fish: A Guide to Marine Fish of the Pacific Coast of North America by Ron Russo, illustrated by Ann Caudle. Compact guide to marine fish. Put it in your tackle box to identify what you catch, or read at home for information about the biology of fish, the marine food chain, and distribution of fish species. Detailed black-and-white illustrations of the fish, plus egg cases of sharks and skates, and shark teeth. Covers the waters off the Pacific Coast, from the Bering Straits to Cabo San Lucas (the southern tip of Baja California.)
ISBN-13 978-0-912550-19-0, ISBN-10 0-912550-19-8, 112 pages, $5.75. Buy It

Special: Save on Pacific Coast Fish with imperfect covers. These copies have a cosmetic flaw--white speckles where covers stuck together because of a coating problem--but of course they're perfectly useable. $3.00 while supplies last (save $2.75.) Buy It

Pacific Intertidal Life : A Guide to Organisms of Rocky Reefs and Tide Pools of the Pacific Coast by Ron Russo, illustrated by Pam Olhausen. The book to take tidepooling. Field guide to the plants and animals that live in tide pools and on rocky reefs along the Pacific Coast, from Alaska to Baja California. Describes intertidal ecology, intertidal zones, and the survival strategies of the fascinating creatures that live there, such as limpets, abalones, sea slugs, anemones, sea urchins, crabs, algae, and sea stars (starfish). Illustrated with line drawings.
ISBN-13 978-0-912550-10-7, ISBN-10 0-912550-10-4, 64 pages, $3.95. Buy It
Get ten copies of Pacific Intertidal Life for the price of nine, $35.55. Buy It

Pacific Coast Bird Finder: A Pocket Guide to some frequently seen birds by Roger J. Lederer, Ph.D, illustrated by Jacquelyn S. Giuffre. An introduction to common species of California, Oregon, and Washington, and how they live, organized by the habitats where the birds are most likely to be seen. Illustrated with line drawings.
ISBN-13 978-0-912550-04-6, ISBN-10 0-912550-04-X, 64 pages, $3.95. Buy It
Get ten copies of Pacific Coast Bird Finder for the price of nine, $35.55. Buy It

Visit Dr. Lederer's website www.ornithology.com to learn more about birding.

Pacific Coast Fern Finder by Glenn Keator, PhD, and Ruth M. Heady, illustrated by Valerie R. Winemiller. Dichotomous key to native Pacific Coast ferns and fern relatives, including clubmosses, spikemosses, quillworts and horsetails. Covers California, Western Oregon and Washington, and Southwestern BC. Explains parts of the fern, and fern life cycles. Illustrated with line drawings.
ISBN-13 978-0-912550-13-8, ISBN 0-912550-13-9, 64 pages, $3.95. Buy It
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Pacific Coast Mammals: A Guide to Mammals of the Pacific Coast States, Their Tracks, Skulls, and Other Signs by Ron Russo, illustrated by Pam Olhausen. Guide to identifying mammals of the Pacific Coast states, whether you've seen the animal itself, or come across tracks, droppings, or other clues it has left behind. Includes tracks and prints, skulls, dental formulas (useful if you find a jawbone or skull) a chart of animal silhouettes, scat (droppings), and a key to other signs, such as chew marks, burrows and dens. Illustrated with detailed line drawings. Includes range maps and a bibliography. Covers California, Oregon, and Washington state. (Originally published as Mammal Finder.)
ISBN-13 978-0-912550-16-9, ISBN-10 0-912550-16-3, 96 pages, $4.75. Buy It
Get ten copies of Pacific Coast Mammals for the price of nine, $42.75. Buy It

Pacific Coast favorites set: One each of our most popular Finders for the region: Pacific Coast Tree Finder, Pacific Coast Bird Finder, Pacific Intertidal Life, and Pacific Coast Mammals, $16.60 if purchased separately. $13.95 for the set. Buy It

Pacific Coast Finders set: One copy each of the Finders books for the Pacific Coast region (8 books): $34.20 if purchased separately; $29.95 for the set.Buy It
Scroll up for descriptions of these books.

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Books for East of the Rockies

Tree Finder, by May Theilgaard Watts, is the classic key to identifying trees by their leaves and needles. (Originally published under the title Master Tree Finder.) Covers native and commonly introduced trees of the U.S. and Canada east of the Rockies and north of Florida. Line drawings point out important features of plant structure. This is the one to put in your pocket and take for a walk in the woods.
ISBN-13 978-0-912550-01-5, ISBN-10 0-912550-01-5, 64 pages, $3.95. Buy It
Get 10 copies of Tree Finder for the price of 9, $35.55. Buy It

Winter Tree Finder: A Manual for Identifying Deciduous Trees in Winter, by May Theilgaard Watts and Tom Watts. Key to identifying deciduous trees in the winter (when they've lost their leaves) by examining twigs and other features. Describes parts of the twig and their function. Line drawings show twigs, buds, fruits, shape, habitat, and range of trees. Covers US and Canada east of the Rocky Mountains, except Florida.
ISBN-13 978-0-912550-03-9, ISBN-10 0-912550-03-1, 64 pages, $3.95. Buy It
Get 10 copies of Winter Tree Finder for the price of 9, $35.55. Buy It

Track Finder by Dorcas S. Miller, illustrated by Cherie Hunter Day. Guide to mammal tracks of eastern US and Canada. Includes key to print shapes, key to track patterns, discussion of scat and other signs, habitat information, range maps, and drawings of the animals and their tracks. For identifying tracks in mud or snow. A favorite of young naturalists.
ISBN-13 978-0-912550-12-1, ISBN-10 0-912550-12-0, 64 pages, $3.95. Buy It
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Fern Finder: A Guide to Native Ferns of Central and Northeastern United States and Eastern Canada by Anne C. Hallowell and Barbara Hallowell, illustrated by Anne C. Hallowell. Second edition. Dichotomous key to native ferns of US and Canada east of the Rockies. For the second edition, author Barbara Hallowell has updated range maps, based on information gathered over the past 20 years, and updated fern names. As with all our dichotomous keys, a lot of information has been packed into this little book. You won't find another field guide to ferns that approaches Fern Finder in usefulness and accuracy without costing, and weighing, a lot more.
ISBN-13 978-0-912550-24-4, ISBN-10 0-912550-24-4, 64 pages, $3.95. Buy It
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Berry Finder: A Guide to Native Plants with Fleshy Fruits for Eastern North America by Dorcas S. Miller, illustrated by Cherie Hunter Day. Identifies plants with fleshy fruits, including natives and some cultivated species that have become established in the wild. Includes many native shrubs and vines. (Many of these plants have fruits that are known or suspected to be poisonous. This is not a guide to edible plants.) Covers U.S. and Canada east of the Rockies, except southern Florida. Most useful in late summer and fall when ripe berries are present.
ISBN-13 978-0-912550-22-0, ISBN-10 0-912550-22-8, 64 pages, $3.95.Buy It
Get 10 copies of Berry Finder for the price of 9, $35.55. Buy It

Flower Finder: A Guide to Identification of Spring Wild Flowers and Flower Families by May Theilgaard Watts. Dichotomous key to spring wildflowers of US and Canada east of the Rockies and north of the Smokies. Like our other flower guides, it keys first to the family and then to individual species. Explains botanical terms used to describe flower parts. Illustrated with author's line drawings.
ISBN-13 978-0-912550-00-8, ISBN-10 0-912550-00-7, 64 pages, $3.95. Buy It
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Bird Finder: A Guide to Common Birds of Eastern North America by Roger J. Lederer, illustrated by Roger C. Franke. An introduction to common species and how they live, organized by the habitats where the birds are most likely to be seen. Illustrated with line drawings.
ISBN-13 978-0-912550-18-3, ISBN-10 0-912550-18-X, 64 pages, $3.95. Buy It
Get 10 copies of Bird Finder for the price of 9, $35.55. Buy It

Visit Dr. Lederer's website www.ornithology.com to learn more about birding.

Life on Intertidal Rocks: A Guide to Marine Life of the Rocky North Atlantic Coast by Cherie Hunter Day. Identifies plants and animals (Kelp, Sea Anemones, Sea Slugs, Crabs, and Starfish, and many more) that live in the intertidal zone of the rocky Atlantic Coast, from Rhode Island north to the Bay of Fundy. The granite bedrock of this glacier-scoured coast forms a habitat with many places for living things to hide. The twice-daily rise and fall of the sea creates the intertidal zone, extending from the splash zone, which gets wet from wave splash at high tide, but is never under water, to the lower zone, which is exposed only during the most extreme low tides. Organisms that live here endure many stresses, including winter cold and ice, alternating exposure and submersion, pollution, and the danger of being ripped away by waves during a storm. This book will help you identify organisms that live in and on tidepools, rocks, pilings, and wharves, and understand how they survive. Illustrated with the author's clear and detailed line drawings.
ISBN-13 978-0-912550-15-2, ISBN-10 0-912550-15-5, 64 pages, $3.95. Buy It
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Winter Weed Finder: A Guide to Dry Plants in Winter by Dorcas S. Miller, illustrated by Ellen Amendolara. Key identifies native and naturalized herbs (non-woody plants) and ferns by their dry structures that remain in late fall and winter, such as pods, seed capsules, burrs, and dried flowers. Covers northcentral and northeastern US (from about N. Carolina north and Minnesota east) and southeastern Canada. Illustrated with line drawings.
ISBN-13 978-0-912550-17-6, ISBN 0-912550-17-1, 64 pages, $3.95. Buy It
Get 10 copies of Winter Weed Finder for the price of 9, $35.55. Buy It

Winter Finders set: One copy each of Winter Tree Finder, Winter Weed Finder, and Track Finder, $11.85 if purchased separately; $10.65 for the set. Buy It Scroll up for descriptions of these books.

East-of-the-Rockies Finders set: One copy of all the Finders books for east of the Rocky Mountains (nine books): $35.55 if purchased separately; $31.95 for the set. Buy It Scroll up for descriptions of these books.

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Books for the Rocky Mountains & Great Basin

NEW EDITION! Rocky Mountain Tree Finder Second Edition, by Tom Watts and Bridget Watts.
Key to identifying native trees by their leaves and needles across the Mountain West, from the Canadian Rockies south to the mountains of Arizona and New Mexico, and Black Hills west to the Cascades. Includes a dramatic variety of life zones and trees, from the narrow spires of fir and spruce in the subalpine zone, to the short, tough pinyon and juniper of the plains, or upper Sonoran, zone. New in this edition: Names updated, metric measurements added, range maps extended to include Canada.
ISBN 978-0-912550-29-9, 64 pages, $3.95 Buy It
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SALE
Rocky Mountain Tree Finder
by Tom Watts, first edition.
ISBN-13 978-0-912550-05-3, ISBN-10 0-912550-05-8, 64 pages, $3.95 $2.50 Buy It
Get 10 copies of the first edition of Rocky Mountain Tree Finder for only $35.55 $20.00. Buy It
(supplies are very limited)

Rocky Mountain Flower Finder: A Guide to Wildflowers Found Below Tree Line in the Rocky Mountains by Janet L. Wingate, PhD. Key to identifying wildflowers of the Rockies that grow at altitudes where trees grow, including the foothill, montaine, and subalpine zones. Keys to families and then individual species. Includes information about habitat and range, and a glossary of terms used to describe flowers and leaves. Illustrated with the author's very clear and helpful line drawings.
ISBN-13 978-0-912550-20-6, ISBN-10 0-912550-20-1, 128 pages, $5.75. Buy It
Save 15%: Five copies of Rocky Mountain Flower Finder for $24.44. Buy It

Mountain State Mammals: A Guide to Mammals of the Rocky Mountain Region by Ron Russo, illustrated by Barbara Downs. Covers wild mammals of Idaho, Montana, Wyoming, Utah, Colorado, Arizona, and New Mexico. Includes charts of footprints, droppings (scat), skulls, jaws, a key to nests, burrows, dens, mounds and depressions, and a key to chew, scratch, and browse marks and other signs of an animal's passing. For every species, there are drawings of its skull, tracks, scat, range, and the animal itself, and information about life cycle and behavior.
Click here to see some illustrations from this book.
ISBN-13 978-0-912550-21-3, ISBN-10 0-912550-21-X, 136 pages, $6.75. Buy It

Rocky Mountains Finders Set (1 copy each of Rocky Mountain Tree Finder, Rocky Mountain Flower Finder, and Mountain State Mammals) $14.95 for the set ($16.45 if purchased separately.) Buy It Scroll up for descriptions of these books.

A Book for the Southwestern Deserts

Desert Tree Finder by May Theilgaard Watts and Tom Watts, is a key to identifying trees of the deserts of California, Arizona, and New Mexico. Shows habitat and distribution of native trees and some commonly introduced non-native trees that survive in the harsh climate of the deserts and desert hills, where rainfall is too sparse to support pine trees.
ISBN-13 978-0-912550-07-7, ISBN-10 0-912550-07-4, 64 pages, $3.95. Buy It
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What is a dichotomous key?

A dichotomous key leads you through a series of questions about the plant you're trying to identify. Each question makes you chose between two possibilities (dichotomous means dividing in two), and each choice brings you closer to the name of the species. Key guides encourage close observation of plant structures and help you learn which plants are closely related to each other. Many educators believe dichotomous keys are the best tools for learning to identify plants. Read FAQs about our plant books for more about key guides.
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