Acknowledgments

vii

About This Book

(3)

How to Identify a Weed

(1)

Shortcut Identification Tables

(4)

Table 1. Weeds with thorns, spines, or sharp prickles

(1)

Table 2. Weeds with square stems (or angled or winged so as to appear square)

(1)

Table 3. Weeds with whorled or seemingly whorled leaves

(1)

Table 4. Weeds that exude milky sap from fresh roots, stems, and/or foliage

(1)

Table 5. Weeds with an ocrea (a papery sheath that encloses the stem at the nodes)

(1)

Table 6. Weeds with palmately compound or seemingly palmately compound leaves

(1)

Table 7. Weeds with dissected or seemingly dissected leaves

(1)

Vegetative Key to the Weeds

(9)

Spore Producers

(6)

Bryophyta

(4)

Equisetaceae (Horsetail Family)

(2)

Monocots

(64)

Commelinaceae (Spiderwort Family)

(2)

Cyperaceae (Sedge Family)

(2)

Juncaceae (Rush Family)

(2)

Liliaceae (Lily Family)

(4)

Poaceae = Gramineae (Grass Family)

(54)

Dicots

(238)

Aizoaceae (Carpetweed Family)

(2)

Amaranthaceae (Amaranth Family)

(8)

Apiaceae = Umbelliferae (Carrot Family)

(4)

Asclepiadaceae (Milkweed Family)

102

(4)

Asteraceae = Compositae (Aster Family)

106

(62)

Brassicaceae = Cruciferae (Mustard Family)

168

(20)

Campanulaceae (Bellflower Family)

188

(2)

Caryophyllaceae (Pink Family)

190

(14)

Chenopodiaceae (Goosefoot Family)

204

(4)

Convolvulaceae (Morningglory Family)

208

(10)

Cucurbitaceae (Gourd Family)

218

(2)

Dipsacaceae (Teasel Family)

220

(2)

Euphorbiaceae (Spurge Family)

222

(6)

Fabaceae = Leguminosae (Pea or Bean Family)

228

(14)

Geraniaceae (Geranium Family)

242

(4)

Lamiaceae = Labiatae (Mint Family)

246

(8)

Lythraceae (Loosestrife Family)

254

(2)

Malvaceae (Mallow Family)

256

(8)

Onagraceae (Eveningprimrose Family)

264

(2)

Oxalidaceae (Woodsorrel Family)

266

(2)

Phytolaccaceae (Pokeweed Family)

268

(2)

Plantaginaceae (Plantain Family)

270

(4)

Polygonaceae (Smartweed Family)

274

(14)

Portulacaceae (Purslane Family)

288

(2)

Primulaceae (Primrose Family)

290

(4)

Ranunculaceae (Buttercup Family)

294

(2)

Rosaceae (Rose Family)

296

(4)

Rubiaceae (Madder Family)

300

(4)

Scrophulariaceae (Figwort Family)

304

(8)

Solanaceae (Nightshade Family)

312

(8)

Urticaceae (Nettle Family)

320

(2)

Violaceae (Violet Family)

322

(4)

Woody Plants

326

(28)

Anacardiaceae (Cashew Family)

326

(4)

Bignoniaceae (Trumpetcreeper Family)

330

(2)

Caprifoliaceae (Honeysuckle Family)

332

(4)

Celastraceae (Stafftree Family)

336

(2)

Liliaceae (Lily Family)

338

(2)

Ranunculaceae (Buttercup Family)

340

(2)

Rosaceae (Rose Family)

342

(4)

Simaroubaceae (Quassia Family)

346

(2)

Solanaceae (Nightshade Family)

348

(2)

Vitaceae (Grape Family)

350

(4)

Hardwood Seedlings

354

(9)

Comparison Tables

363

(12)

Table 8. Comparison of pigweeds and amaranths

363

(1)

Table 9. Comparison of weedy species in the carrot family (Apiaceae)

364

(1)

Table 10. Comparison of 4 members of the aster family that have finely dissected leaves

365

(1)

Table 11. Comparison of sowthistles and prickly lettuce

366

(2)

Table 12. Comparison of bindweeds and wild buckwheat

368

(1)

Table 13. Comparison of wild cucumber and burcucumber

369

(1)

Table 14. Comparison of trifoliolate (3 leaflets) legumes and woodsorrel

370

(2)

Table 15. Comparison of broadleaf plantain and blackseed plantain

372

(1)

Table 16. Comparison of selected speedwell species

373

(1)

Table 17. Comparison of groundcherry and nightshade species

374

(1)

Glossary

375

(10)

Bibliography

385

(4)

Index

389

(8)

About the Authors

397

The Grass Identification Table appears on a foldout at the back of the book.

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Weeds of the Northeast

9780801483349

0801483344

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