U

Ulmus americana (AMERICAN ELM) -- II 198, III 475, X 358

see also Elm, Elm (American), Elm (Common)

Ulmus fulva = Ulmus rubra (SLIPPERY ELM) -- V 227, VIII 118, X 358

Ulmus procera (ENGLISH ELM) -- see Elm (English)

Ulmus rubra (SLIPPERY ELM) -- see Elm (Slippery), Ulmus fulva

Ulmus thomasi (ROCK ELM) -- see Elm (Corky)

Umbelliferae (PARSLEY FAMILY) -- XII 364

__ (-ous plant) -- XIII 40

Umbilicaria = a lichen

Uraspermum (Hairy) = Osmorhiza claytoni (SWEET CICELY) -- XI 6

Urtica = Urtica spp. (NETTLE) -- VI 450, IX 90

see also Nettle

Urtica canadensis = Laportea canadensis (WOOD NETTLE) -- IX 66, 79, XI 51

Urtica dioica (STINGING NETTLE) -- II 388, IV 277

see also Nettle (Stinging)

Urtica gracilis ³²⁷ = Urtica procera (TALL NETTLE) -- IV 225, 287, IX 79, 90

Urtica procera (TALL NETTLE) -- see Nettle (Common), Urtica gracilis

Urtica urens (DWARF NETTLE) -- XII 340

Usnea = a lichen

Utricularia = Utricularia spp. (BLADDERWORT) -- V 300, 313, 318, 489, VI 307, 422, 453, 483, VII 514, VIII 20, 124, 417, 425, X 17, XI 71, 73, XII 230, 267, XIII 268, XIV 98

__ (-like) -- V 307, VI 422, XI 92; __ (root) -- II 435

Utricularia (Common) = Utricularia vulgaris (COMMON BLADDERWORT) -- IV 223, VI 424, XII 202

Utricularia cornuta (HORNED BLADDERWORT) -- III 13, IV 207, VI 390

see Utricularia (Horned), Utricularia (Leafless)

Utricularia (Horned) = Utricularia cornuta (HORNED BLADDERWORT) -- III 13, 64, IV 355, V (318), 323

Utricularia inflata (INFLATED BLADDERWORT) -- II 435, IV 330

see also Bladderwort (Whorled), Utricularia (Whorled)

Utricularia intermedia (FLAT-LEAVED BLADDERWORT) -- XI 173

Utricularia (Leafless) = Utricularia cornuta (HORNED BLADDERWORT) -- VII 48

Utricularia (Purple) = Utricularia purpurea (PURPLE BLADDERWORT) -- VI 390, (422), (424), VIII 442, XI 70, 73

Utricularia purpurea (PURPLE BLADDERWORT) -- V 315, X 21, XII 261, 267

see also Utricularia (Purple)

Utricularia resupinata (RECLINED BLADDERWORT) -- IX 484

Utricularia vulgaris (COMMON BLADDERWORT) -- II 482, IV 91, 223, 257, V 231, 300, 310, 489, VI 335, 336, VIII 377, 416, X 483, XI 94, XII 261, 267, XIII 185, XIV 116

see also Bladderwort (Common), Utricularia (Common), Uvularia vulgaris

Utricularia (Whorled) = Utricularia inflata (INFLATED BLADDERWORT) -- V 403, VI 361, 424, VIII 426, 440, X (21)

Uva-ursi = Arctostaphylos uva-ursi (COMMON BEARBERRY) -- II 224, III 414, VII 95, 378, X 387, XI 8, XII 380, 382, 383

__ (berry) -- VI 438, 447, VII 442, IX 88

Uvularia = Uvularia sessilifolia (WILD OATS, SESSILE-LEAVED BELLWORT) -- V 174, 191, VI 262, XII 304

Uvularia grandiflora (LARGE-FLOWERED BELLWORT) ³⁷ -- IX 491, X 454, XI 24, 60

Uvularia perfoliata (PERFOLIATE BELLWORT) -- II 224, IV 360, VIII 378, IX 391, X 9, 395, 423, 427, XII 186

see also Bellwort (Perfoliate)

Uvularia sessilifolia (WILD OATS, SESSILE-LEAVED BELLWORT) -- IV 53, V 122, X 417, XII 294, XIII 291

__ (lower) -- IX 391

see also Bellwort (Sessile-leaved), Uvularia

Uvularia vulgaris ⁸ = Utricularia vulgaris (COMMON BLADDERWORT) -- II 270