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Page 1, records 1-200 of 101,298

Typha x glauca nothospecies
S.Cutler
Typha x glauca nothospecies
D.Benson
Typha latifolia species
A.M. Capistrant
Typha genus
K.M.Myhre
Typha x glauca nothospecies
D.Benson
Typha latifolia species
W.R.Smith
Cirsium discolor species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium discolor species
G.B.Ownbey
Cirsium flodmanii species
G.B.Ownbey
Cirsium discolor species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium arvense species
M.Severson
Cirsium arvense species
M.Severson
Cirsium muticum species
G.B.Ownbey
Cirsium flodmanii species
G.B.Ownbey
Cirsium discolor species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium discolor species
G.B.Ownbey
Cirsium discolor x muticum hybrid
G.B.Ownbey
Cirsium arvense species
S.J.Ottoson
Cirsium arvense species
S.J.Ottoson
Cirsium muticum species
G.B.Ownbey
Cirsium vulgare species
S. Clemants
Cirsium muticum species
G.B.Ownbey
Cirsium muticum species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Cirsium x iowense species
G.B.Ownbey
Poa arctica subsp. artica
Clokey, I. W.
Poa arctica subsp. artica
Rydberg, P. A.
Poa arctica subsp. artica
Raup, H. M.
Poa arctica subsp. artica
Clokey, I. W.
Poa arctica subsp. artica
Spetzman, L. A.
Poa arctica subsp. artica
Raup, H. M.
Poa arctica subsp. artica
Raup, H. M.
Poa fendleriana x secunda hybrid
Henderson, D.
Poa lettermani
Patterson, H. N.
Poa lettermani
Patterson, H. N.
Poa lettermani
Patterson, H. N.
Cirsium discolor x muticum
Ownbey, Gerald; et al.
Cirsium discolor x muticum
Ownbey, Gerald; et al.
Typha latifolia species
Smith, Welby
Veronica peregrina variety xalapensis
Wheeler, Gerald
Carex pinguis
Arthur, J.; et al.
Veronica peregrina variety xalapensis
G.A.Wheeler
Salix alaxenis alaxensis
Glaser, Paul
Juncus arcticus variety alaskanus
Cooper, W. S.
Najas guadalupensis variety olivacea
Myhre, K.
Typha latifolia species
Smith, Welby
Epilobium ciliatum variety ciliatum
Gerdes, Lynden
Mentha arvensis variety canadensis
DeMink, L.
Mentha gracilis nothospecies
Schimpf, D.
Lysimachia x commixta nothospecies
Gunderson, R.
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Delaney, B.
Lythrum alatum variety alatum
Morley, T.
Lythrum alatum variety alatum
Skinner, S.
Lythrum alatum variety alatum
Skinner, S.
Lythrum alatum variety alatum
Aiton, G.
Lythrum alatum variety alatum
Moyer, Lycurgus
Lythrum alatum variety alatum
Moyer, Lycurgus
Lythrum alatum variety alatum
Sandberg, John
Lythrum alatum variety alatum
Sheldon, Edmund
Lythrum alatum variety alatum
Rosendahl, C.
Lythrum alatum variety alatum
Taylor, B.
Lythrum alatum variety alatum
Sandberg, John
Lythrum alatum variety alatum
Sandberg, John
Lythrum alatum variety alatum
Menzel, Max
Lythrum alatum variety alatum
Aiton, G.
Lythrum alatum variety alatum
Herrick, C.
Lythrum alatum variety alatum
Kassube, J.
Lythrum alatum variety alatum
Aiton, G.
Lythrum alatum variety alatum
Wheeler, William
Lythrum alatum variety alatum
Aiton, G.
Lythrum alatum variety alatum
Sheldon, Edmund
Lythrum alatum variety alatum
Ballard, C.
Lythrum alatum variety alatum
Sheldon, Edmund
Lythrum alatum variety alatum
Menzel, Max
Lythrum alatum variety alatum
Holzinger, John
Lythrum alatum variety alatum
Roberts, Thomas
Lythrum alatum variety alatum
Rosendahl, C.
Lythrum alatum variety alatum
Lakela, Olga
Lythrum alatum variety alatum
Moyle, J.
Lythrum alatum variety alatum
Rosendahl, C.; et al.
Lythrum alatum variety alatum
Moore, Marjorie; Moore, John
Lythrum alatum variety alatum
Moore, John; Moore, Marjorie
Lythrum alatum variety alatum
Rosendahl, C.; Moore, John
Lythrum alatum variety alatum
Moore, John; Youngken, H.
Lythrum alatum variety alatum
Benson, Robert
Lythrum alatum variety alatum
Lakela, Olga
Lythrum alatum variety alatum
Moore, John; Tryon, R.
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Moore, John
Lythrum alatum variety alatum
Nation, R.
Lythrum alatum variety alatum
Ownbey, Gerald; Hsi, Yu-tseng [Eugene]
Lythrum alatum variety alatum
Moore, John
Lythrum alatum variety alatum
Cotter Tucker, Shirley
Lythrum alatum variety alatum
Moore, John; Hsi, Yu-tseng [Eugene]
Lythrum alatum variety alatum
Stevens, O.
Lythrum alatum variety alatum
Morean, Edith
Lythrum alatum variety alatum
Moore, John
Lythrum alatum variety alatum
Moore, John; Moore, Marjorie
Lythrum alatum variety alatum
Westkaemper, Remberta
Lythrum alatum variety alatum
Rosendahl, C.
Lythrum alatum variety alatum
Morley, T.
Lythrum alatum variety alatum
Heitlinger, M.
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Wheeler, Gerald
Lythrum alatum variety alatum
Morley, T.
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Heidel, B.
Lythrum alatum variety alatum
Nietering, E.
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Smith, Welby
Lythrum alatum variety alatum
Sather, Nancy
Lythrum alatum variety alatum
Smith, Welby
Echinochloa muricata variety muricata
Scott, P.
Najas guadalupensis variety olivacea
Myhre, K.
Mentha arvensis variety canadensis
Ballard, C.
Mentha arvensis variety canadensis
Herrick, C.
Mentha arvensis variety canadensis
Kassube, J.
Mentha arvensis variety canadensis
White, Sidney
Mentha arvensis variety canadensis
B.Aiton
Mentha arvensis variety canadensis
Moore, John; Moore, Marjorie
Mentha arvensis variety canadensis
Lakela, Olga
Mentha arvensis variety canadensis
Nation, R.
Mentha arvensis variety canadensis
Moore, John; Huff, N.
Mentha arvensis variety canadensis
Moore, John
Mentha arvensis variety canadensis
Gomez, N.
Mentha arvensis variety canadensis
Smith, Welby
Mentha arvensis variety canadensis
Monson, Paul
Mentha arvensis variety canadensis
Schimpf, D.; Mayer, S.
Mentha arvensis variety canadensis
Nation, R.; Bolin, Kathy
Mentha arvensis variety canadensis
Moore, John
Mentha arvensis variety canadensis
Gunderson, R.
Mentha arvensis variety canadensis
Westkaemper, Remberta
Mentha arvensis variety canadensis
Westkaemper, Remberta
Mentha arvensis variety canadensis
Westkaemper, Remberta
Mentha arvensis variety canadensis
Ownbey, Gerald; Hsi, Yu-tseng [Eugene]
Mentha arvensis variety canadensis
Ziegler, S.; Leykom, M.
Mentha arvensis variety canadensis
Dorio, J.
Mentha arvensis variety canadensis
Dorio, J.
Mentha arvensis variety canadensis
Ownbey, Gerald
Mentha arvensis variety canadensis
Ownbey, Gerald
Mentha arvensis variety canadensis
Dorio, J.
Mentha arvensis variety canadensis
Converse, C.
Mentha arvensis variety canadensis
Cholewa, A.
Mentha arvensis variety canadensis
Cloutier, H.
Mentha arvensis variety canadensis
Carter, J.; Robertson, Steve
Mentha arvensis variety canadensis
Monson, Paul
Mentha arvensis variety canadensis
Monson, Paul
Mentha arvensis variety canadensis
Smith, Welby
Mentha arvensis variety canadensis
Smith, Welby
Mentha arvensis variety canadensis
MacMillan, C.; et al.
Mentha arvensis variety canadensis
Moyer, Lycurgus; Nisbit, J.
Mentha arvensis variety canadensis
Leonard
Mentha arvensis variety canadensis
Ballard, C.
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
MacMillan, C.; et al.
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Taylor, B.
Mentha arvensis variety canadensis
Ainslie, G.
Mentha arvensis variety canadensis
Frost, W.
Mentha arvensis variety canadensis
Ballard, C.
Mentha arvensis variety canadensis
Ballard, C.
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Skinner, S.
Mentha arvensis variety canadensis
Skinner, S.
Mentha arvensis variety canadensis
Ballard, C.
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Herrick, C.
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Ballard, C.
Mentha arvensis variety canadensis
Taylor, B.
Mentha arvensis variety canadensis
Roberts, Thomas
Mentha arvensis variety canadensis
Lyon, H.
Mentha arvensis variety canadensis
Frost, W.
Mentha arvensis variety canadensis
Menzel, Max
Mentha arvensis variety canadensis
Sheldon, Edmund
Mentha arvensis variety canadensis
Menzel, Max
Mentha arvensis variety canadensis
Menzel, Max

Page 1, records 1-200 of 101,298