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622 collections found. 50 collections shown.
Acanthaceae Dicliptera brachiata (Pursh) Spreng. - United States of America
Acanthaceae Dyschoriste linearis (T. & G.) Ktze. - United States of America
Acanthaceae Justicia americana (L.) Vahl - United States of America
Acanthaceae Ruellia humilis var. expansa Fernald - United States of America
Acanthaceae Ruellia strepens L. - United States of America
Aceraceae Acer negundo ssp. latifolium (Pax) Schwerin - United States of America
Agavaceae Yucca arkansana Trel. - United States of America
Amaranthaceae Acnida australis A. Gray - United States of America
Amaranthaceae Alternanthera caracasana H.B.K. - United States of America
Amaranthaceae Amaranthus palmeri S. Wats. - United States of America
Amaranthaceae Amaranthus rudis - United States of America
Amaranthaceae Froelichia gracilis Moq - United States of America
Anacardiaceae Rhus aromatica Ait. - United States of America
Anacardiaceae Rhus copallina var. latifolia Engler - United States of America
Anacardiaceae Rhus flabelliformis var. aromatica - United States of America
Anacardiaceae Rhus glabra L. - United States of America
Anacardiaceae Toxicodendron rydbergii (Small ex Rydb.) Greene - United States of America
Apiaceae Ammoselinum butleri (Engelm.) Coulter & Rose - United States of America
Apiaceae Bifora americana L. - United States of America
Apiaceae Chaerophyllum tainturieri var. dasycarpum (Nutt.) Hook. - United States of America
Apiaceae Chaerophyllum tainturieri - United States of America
Apiaceae Cymopterus macrorhizus Buckl. - United States of America
Apiaceae Daucus pusillus Michx - United States of America
Apiaceae Eryngium hookeri Walp. - United States of America
Apiaceae Eryngium leavenworthii T. & G. - United States of America
Apiaceae Eryngium yuccifolium Michx - United States of America
Apiaceae Hydrocotyle umbellata L. - United States of America
Apiaceae Polytaenia nuttallii (DC.) Coulter & Rose - United States of America
Apiaceae Ptilimnium nuttallii (DC.) Britton - United States of America
Apiaceae Sanicula canadensis L. - United States of America
Apiaceae Spermolepis divaricata (Walt.) Britton - United States of America
Apiaceae Spermolepis echinata (Nutt.) Heller - United States of America
Apiaceae Spermolepis inermis (Nutt.) Mathias and Constance - United States of America
Apiaceae Torilis arvensis (Huds.) Link - United States of America
Apiaceae Torilis nodosa (L.) Gaertn. - United States of America
Apocynaceae Amsonia ciliata var. texana (A. Gray) Coulter - United States of America
Apocynaceae Amsonia tabernaemontana - United States of America
Apocynaceae Amsonia tabernaemontana var. repens (Shinners) J. K. Williams - United States of America
Apocynaceae Apocynum cannabinum var. cannabinum L. - United States of America
Aquifoliaceae Ilex decidua var. decidua Walter - United States of America
Aristolochiaceae Aristolochia tomentosa Sims - United States of America
Asclepiadaceae Asclepias capricornu ssp. capricornu Woods - United States of America
Asclepiadaceae Asclepias tuberosa var. interior (Woodson) Shinners - United States of America
Asclepiadaceae Asclepias verticillata L. - United States of America
Asclepiadaceae Asclepias viridiflora Raf. - United States of America
Asclepiadaceae Asclepias viridis Walt. - United States of America
Asteraceae Achillea lanulosa Nutt. - United States of America
Asteraceae Ambrosia aptera DC. - United States of America
Asteraceae Ambrosia artemisiifolia L. - United States of America