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Eatonia pennsylvanica = Sphenopholis intermedia (WEDGEGRASS) -- XIII 396
Echinocloa crus-galli (BARNYARD GRASS) -- see Barnyard Grass, Panicum crus-galli
Eel-grass = Vallisneria americana (TAPE-GRASS) -- II 345, III 54, V 299, 300, 311, 486, VII 316, 430
Eglantine = Rosa eglanteria (SWEET-BRIER) -- V 273
Elatine americana (MUD-PURSLANE) 111 -- IV 320
Elatine minima (SMALL WATERWORT) -- see Elatine americana, Elatine (Small Crypta)
Elatine (Small Crypta) = Elatine minima (SMALL WATERWORT) -- VI 379
Elder = Sambucus canadensis (COMMON ELDER) -- II 276, IV 26, 126, 165, 192, 217, 258, 261, V 116, 126, 160, 289, 310, 419, VI 211, 235, 297, 372, VII 330, VIII 181, 213, 215, X 71, 293, 358, XI 242, 281, XIV 262
Elder (Common) = Sambucus canadensis (COMMON ELDER) -- XI (281)
Elder (Panicled) = Sambucus pubens (RED-BERRIED ELDER) -- VIII 380
Elder (Red) = Sambucus pubens (RED-BERRIED ELDER) -- X 453, 464, 479, XIV 18, 26, 32
Elderberry = Sambucus canadensis (COMMON ELDER) -- II 424, IV 291, 296, 311, V 356, 406, VI 429, 485, VIII 462, IX 15, X 37, XI 152, XII 292, 309, 310, 316, 320, 322, 380, XIII 158
Elderberry (Black) = Sambucus canadensis (COMMON ELDER) -- IX (489)
Elderberry (Red) = Sambucus pubens (RED-BERRIED ELDER) -- IX 489, X 454, XI 6, XIV 340
ELDER (MARSH) = Iva frutescens
Elecampane = Inula helenium (ELECAMPANE) -- II 467, IV 79, VI 403, VII 452, IX 4, 5, XI 54, 162
Eleocharis = Eleocharis spp. (SPIKE-RUSH) -- XI 176, XII 191, XII 367
Eleocharis acicularis (LEAST SPIKE-RUSH) -- XII 217, 278, XIII 284, 315, 402, 407
Eleocharis obtusa (BLUNT SPIKE-RUSH) -- XI 137, XII 217
Eleocharis palustris (CREEPING SPIKE-RUSH) 112 -- X 488, XI 139, XII 196, 197, 202, 205, 225, 259, XIII 308
Eleocharis smallii (SMALL'S SPIKE-RUSH) -- see Eleocharis palustris
Eleocharis tenuis (SLENDER SPIKE-RUSH) -- X 488, XI 132, 134, XII 191, XIII 186, 299, XIV 27, 28
Elm = Ulmus spp. (ELM) 113 -- i 127, 128, 459, 490, I 139, 140, II 53, 64, 154, 197, 215, 217, 248, 254, 281, 287, 301, 341, 378, 411, 422, 454, 467, 486, 487, 505, III 29, 36, 40, 43, 57, 61, 65, 77, 91, 129, 223, 277, 351, 352, 357, 404, 409, 414, 419, 441, 451, 462, 466, 477, 482, 484, 485, 487, IV 8, 16, 17, 18, 19, 24, 32, 36, 41, 46, 50, 52, 59, 65, 69, 78, 90, 112, 116, 184, 187, 192, 210, 222, 275, 277, 298,358, 378, 384, 397, 398, 442, 448, V 27, 32, 36, 50, 62, 86, 93, 99, 108, 121, 126, 133, 137,160, 162, 167, 170, 171, 181, 193, 194, 195, 237, 286, 323, 363, 370, 378, 395, 436, 437, 450, 451, 453, 477, VI 19, 32, 69, 162, 171, 187, 193, 194, 197, 198, 201, 203, 210, 217, 250, 263, 281, 300, 303, 343, 371, 381, 401, 442, VII 4, 15, 19, 29, 37, 42, 66, 83, 125, 176, 217, 243, 259, 261, 282, 297, 298, 302, 306, 370, 371, 375, 376, 385, 420, 513, VIII 32, 49, 54, 59, 67, 95, 110, 116, 118, 125, 130, 131, 135, 136, 139, 142, 144, 145, 150, 181, 202, 206, 250, 284, 287, 289, 372, 411, 433, 443, IX 18, 124, 173, 188, 240, 247, 256, 295, 312, 409, 461, 479, X 10, 11, 23, 48, 51, 59, 67, 76, 78, 79, 80, 88, 89, 98, 100, 102, 117, 140, 164, 345, 349, 357, 379, 383, 393, 412, 418, XI 54, 154, 162, 163, 170, 191, 200, 208, 209, 217, 220, 221, 227, 251, 308, 403, 405, 443, 455, XII 13, 115, 133, 140, 152, 249, 336, 373, XIII 38, 63, 95, 113, 244, 289, 313, 327, 331, 336, 340, 363, 368, 380, XIV 57, 108, 120, 147, 161, 230, 250, 262, 320, 321
Elm (American) = Ulmus americana (AMERICAN ELM) -- VII 322
Elm (Common) = Ulmus americana (AMERICAN ELM) -- V 227, VI 229, 263, VII 319, (373), XI (266)
Elm (Corky) = Ulmus thomasi (ROCK ELM) 114 -- IV 8
Elm (English) = Ulmus procera (ENGLISH ELM) -- XI 315
Elm (Slippery) = Ulmus rubra (SLIPPERY ELM) -- V 227, 311, 312, (372), VI 182, 189, 195, 216, 229, 300, VII 324, VIII 293, 442, IX 482, X 357, 365, XI 154, 266, XII 402, XIII 292
Elm (White) = Ulmus americana (AMERICAN ELM) -- II 198
Elodea spp. (WATERWEED) -- see Eudora
Elodea = Hypericum virginicum (MARSH ST. JOHN'S-WORT) -- V 324, 325, VI 394, 419, VII 451, VIII 428, 436, X 274, 493, XI 94, XII 259
Elodea virginica = Hypericum virginicum (MARSH ST. JOHN'S-WORT) -- IV 240
Elymus spp. (WILD RYE) -- see Lyme Grass
Elymus virginicus (VIRGINIA WILD RYE) -- XI 142, XIV 53
Empetrum = Empetrum nigrum (BLACK CROWBERRY) /Empetrum atropurpureum (PURPLE CROWBERRY) 2 -- XI 35, XIII 326
Empetrum nigrum (BLACK CROWBERRY) 115 -- IV 69, XI 18, 45, 46, 60
Enchanter's-nightshade (Alpine) = Circaea alpina (DWARF ENCHANTER'S NIGHTSHADE) 87 -- VII 447
Endive = Cichorium intybus (CHICORY) -- II 294
English Grass = Poa pratensis (JUNEGRASS, KENTUCKY BLUEGRASS) -- II 310, V 443, IX 432, XII 393
Epifagus virginiana (BEECHDROPS) -- see Beechdrops, Epiphegus, Epiphegus americana
Epigaea = Epigaea repens (TRAILING ARBUTUS) -- V 105, 116, VI 199, 236, VII 359, 360, VIII 304, IX 71, 80, X 276, 306, 325, 367, XI 18, 60, XII 114, 119, 125, 133, 139, 147, XIII 244
Epigaea repens (TRAILING ARBUTUS) -- II 54, IV 49
Epilobium = Epilobium spp. (WILLOW-HERB) -- II 85, 276, 305, 313, 383, 415, 482, IV 89, 99, 154, 164, 258, 308, V 291, 359, 450, VI 359, IX 113, 489, X 507, XI 65, 116, XIV 50, 222
Epilobium alpinum (ALPINE WILLOW-HERB) -- XI 60
Epilobium angustifolium (FIREWEED) -- IV 154, VI 370, X 266, XI 119, XIV 26
Epilobium coloratum (PURPLE-LEAVED WILLOW-HERB) 116 -- II 422, IV 264, 303, 356, V 314, 328, 432, VI 359, 377, VIII 399, 464, X 510, XII 26, XIII 172
Epilobium (Common) = Epilobium angustifolium (FIREWEED) -- IV 306, V (329)
Epilobium glandulosum (NORTHERN WILLOW-HERB) -- see Epilobium coloratum
Epilobium (Great) = Epilobium angustifolium (FIREWEED) -- VIII 436
Epilobium (Large) = Epilobium angustifolium (FIREWEED) -- V 408
Epilobium leptophyllum (NARROW-LEAVED WILLOW-HERB) -- see Epilobium lineare, Epilobium (Linear-leaved), Epilobium molle
Epilobium lineare = Epilobium leptophyllum (NARROW-LEAVED WILLOW-HERB) -- IV 303
Epilobium (Linear-leaved) = Epilobium leptophyllum (NARROW-LEAVED WILLOW-HERB) -- VI 455
Epilobium molle = Epilobium strictum (DOWNY WILLOW-HERB) 117 -- V 329, 406, VII 9, 35
Epilobium palustre (MARSH WILLOW-HERB) -- VIII 464, XIV 18, 26, 28
Epilobium strictum (DOWNY WILLOW-HERB) -- see Epilobium molle
Epiphegus = Epifagus virginiana (BEECHDROPS) -- VIII 423
Epiphegus americana = Epifagus virginiana (BEECHDROPS) -- IX 79
Equisetum = Equisetum spp. (HORSETAIL) -- IV 168, V 14, XII 185, XIII 232
Equisetum arvense (FIELD HORSETAIL) -- III 475, IV 9, 41, VI 225, 284, VII 331, VIII 304, IX 355, X 370
Equisetum fluviatile (WATER HORSETAIL) -- see Equisetum limosum, Equisetum (Pipe-grass), Equisetum uliginosum, Pipes, Pipe-grass
Equisetum hyemale (SCOURING RUSH) -- VII 81, 391, 401, VIII 118, IX 477, 478, X 432
Equisetum limosum = Equisetum fluviatile (WATER HORSETAIL) -- V 144, 218, VII 387, 401, X 419, 421, XI 122, XIII 276
Equisetum (Pipe-grass) = Equisetum fluviatile (WATER HORSETAIL) -- VI 303
Equisetum scirpoides (DWARF HORSETAIL) -- IX 69, 79
Equisetum sylvaticum (WOOD HORSETAIL) -- IV 77, V 121, 311, VI 239, VII 359, VIII 324, IX 362, X 386, 431
Equisetum uliginosum = Equisetum fluviatile (WATER HORSETAIL) -- IV 73, 75
Eragrostis capillaris (LACE LOVE-GRASS) 118 -- XI 124, 145, 150, XIV 54, 76
Eragrostis pectinacea (INDIA LOVE-GRASS) 119 -- VI (473), XI 124, 150, 181, XIII 397, XIV 54
Eragrostis spectabilis (PURPLE LOVE-GRASS) -- see Eragrostis pectinacea
Erechtites = Erechtites hieracifolia (PILEWORT) -- V 329, 359, 362, 406, VI 415, 437, VIII 113, 438, 465, IX 15, 25, 88, 113, X 29, XII 291, 293, 304, 313, 320, 393, XIV 122
Erechtites hieracifolia (PILEWORT) -- IV 286
Ericaceae (HEATH FAMILY) -- III 414, XIV 154
Erigeron = Erigeron spp. (FLEABANE) -- IV 215, VI 290, 351, VII 368
Erigeron annuus (DAISY FLEABANE) -- IV 171, V 237, 249, VI 351, 405, IX 69, 77, 79, XI 8
Erigeron bellidifolius = Erigeron pulchellus (ROBIN'S PLANTAIN) -- IV 82, V 128, 158, 201, VII 405, VIII 358
Erigeron canadensis (HORSEWEED) -- II 62, IV 247, 250, V 316, VI 401, VIII 435
Erigeron (Entire-leaved) = Erigeron strigosus (LESSER DAISY FLEABANE) -- IV 231
Erigeron integrifolius = Erigeron strigosus (LESSER DAISY FLEABANE) -- IV 99, 196
Erigeron philadelphicus (PHILADELPHIA FLEABANE) -- IV 82, IX 71
Erigeron pulchellus (ROBIN'S PLANTAIN) -- see Erigeron bellidifolius, Robin's-plantain
Erigeron strigosus (old usage) = Erigeron annuus (DAISY FLEABANE) -- IV 171
Erigeron strigosus (LESSER DAISY FLEABANE) -- IV 99, 196, 258, V 237, 249, 304, 409, VI 335, 348, 351, 401, 405, 448, XI 8
Erigeron (White) = Erigeron spp. (FLEABANE) 120 -- IV 378
Eriocaulon = Eriocaulon spp. (PIPEWORT) -- VII 479, IX 237
Eriocaulon = Eriocaulon septangulare (SEVEN-ANGLED PIPEWORT) -- VI 374, VII 316, VIII 425, X 349, XI 66, 159, 160, XIII 361
Eriocaulon septangulare (SEVEN-ANGLED PIPEWORT) -- see Eriocaulon
Eriophorum = Eriophorum spp. (COTTON-GRASS) -- VIII 423, X 472, XII 235, XIII 384, 402, XIV 45
Eriophorum gracile (SLENDER COTTON-GRASS) 121 -- VI 406, XII 235, XIII 362, XIV 18, 27, 28
Eriophorum polystachyon = Eriophorum viridi-carinatum (THIN-LEAVED COTTON- GRASS) 122 -- VI 317, X 492, XI 141, XII 208, 235, XIII 303, 351
Eriophorum spissum (HARE'S-TAIL) -- see Eriophorum vaginatum
Eriophorum tenellum (ROUGH COTTON-GRASS) -- see Cotton-grass (Narrow-leaved), Eriophorum gracile
Eriophorum vaginatum = Eriophorum spissum (HARE'S-TAIL) -- X 447, 462, 464, 471, 477, XI 46, 61, 84, XII 191, 235, 238, XIII 350, XIV 18, 27, 28
Eriophorum virginicum (TAWNY COTTON-GRASS) -- IV 386, V 349, XII 235
Eriophorum viridi-carinatum (THIN-LEAVED COTTON-GRASS) -- see Eriophorum polystachyon
Erysimum officinale = Sisymbrium officinale (HEDGE MUSTARD) -- II 279
Erythronium americanum (TROUT LILY) -- IX 80
Eudora = Elodea canadensis (BROAD WATERWEED) /Elodea nuttallii (NARROW WATERWEED) 2 --XIII 273
Eupatorium = Eupatorium spp. (THOROUGHWORT) -- II 389, IV 184, V 314, 337, VI 331, VIII 72, XII 305
Eupatorium ageratoides = Eupatorium rugosum (WHITE SNAKEROOT) -- IX 65, 79
Eupatorium (Common) = Eupatorium dubium (EASTERN JOE-PYE-WEED) -- VII 52
Eupatorium dubium (EASTERN JOE-PYE-WEED) -- see Eupatorium (Common), Eupatorium purpureum, Eupatorium (Red), Eupatorium verticillatum, Trumpet-flower, Trumpet-weed
Eupatorium fistulosum (TRUMPETWEED) -- VI 463
Eupatorium (Ovate-leaved) = Eupatorium pubescens (HAIRY BONESET) -- IV 244
Eupatorium perfoliatum (BONESET) -- IV 266, XII 305
Eupatorium pubescens (HAIRY BONESET) -- IV 244, 305, V 329, VI 408, VIII 446, X 29
Eupatorium purpureum (SWEET-SCENTED JOE-PYE-WEED) 123 -- II 389, 415, 434, III 32, IV 229, 270, 309, V 343, 399, VI 408, 463, VIII 448, IX 98, XII 209, 305
Eupatorium (Red) = Eupatorium dubium (EASTERN JOE-PYE-WEED) -- XII 302
Eupatorium rugosum (WHITE SNAKEROOT) -- see Eupatorium ageratoides
Eupatorium sessilifolium (UPLAND BONESET) -- IV 246, 334, V 371, VI 417, VIII 450
Eupatorium verticillatum = Eupatorium dubium (EASTERN JOE-PYE-WEED) -- II 389
Euphorbia = Euphorbia spp. (SPURGE) -- VI 486, VIII 420
Euphorbia cyparissias (CYPRESS SPURGE) -- X 10, 492, XIII 313
Euphorbia hypericifolia = Euphorbia maculata (EYEBANE) -- IV 319, V 323, VI 486, IX 33, XI 158
Euphorbia maculata (EYEBANE) -- see Euphorbia hypericifolia
Euphorbia maculata (old usage) = Euphorbia supina (MILK PURSLANE) -- II 451, IV 265, V 303, VI 385, VIII 446
Euphorbia polygonifolia (SEASIDE SPURGE) -- VI 487, VII 436, XI 174
Euphorbia supina (MILK PURSLANE) -- see Euphorbia maculata (old usage), Spurge (Common)
Evergreen = 124 -- II 304
Everlasting = Gnaphalium spp. (CUDWEED)/Anaphalis margaritacea (PEARLY EVERLASTING) -- i 267, 354, I 216, 307, IV 379, V 450, VIII 124, IX 146, X 505
Everlasting (Fragrant) = Gnaphalium obtusifolium (SWEET EVERLASTING)/Gnaphalium macounii (CLAMMY EVERLASTING) 125 -- IV 348, 356, 363, V 120, 432, 461, 477, VI 384, 419, VIII 123, 459, IX 34, 155, 280, XI 93, 201, XIV 122
Everlasting (Pearly) = Anaphalis margaritacea (PEARLY EVERLASTING) -- IV 230, (307), V 179, 317, VIII 436, XI 119, 186, XII (305), XIV 26
Everlasting (Plantain-leaved) = Antennaria spp. (PUSSYTOES) -- III 473
Evernia = a lichen
EYEBANE = Euphorbia maculata
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-- Revised: Sept. 28, 2014
Created by: Ray Angelo
rangelo@oeb.harvard.edu