Collection Holdings native to Iowa:
Acoraceae
- Acorus calamus
- Asia, N. America
Apocynaceae
Subfamily Asclepiadoideae
Tribe Asclepiadeae
- Asclepias tuberosa
- SE. Canada, U.S.A. to N. Mexico
Araceae
Subfamily Lemnoideae
- Lemna minor
- Cosmopolitan
- Wolffia columbiana
- N & S America
Asparagaceae
Subfamily Agavoideae
Tribe Agaveae
- Yucca glauca
- Central N. America - Iowa to Texas and N. Dakota.
Asteraceae
Subfamily Asteroideae
Tribe Astereae
- Solidago rigida
- central & eastern US & Canada
Subfamily Asteroideae
Tribe Heliantheae
- Helianthus tuberosus
- eastern North America
Cactaceae
Subfamily Opuntioideae
Tribe Opuntieae
- Opuntia fragilis
- western US - wide distribution, but not common
- Opuntia humifusa
- eastern US
W/C
Ceratophyllaceae
- Ceratophyllum demersum
- cosmopolitan, native to all continents except Antarctica.
Convolvulaceae
Subfamily Convolvuloideae
Tribe Convolvuleae
- Calystegia sepium
- Europe, Asia, North America
Cystopteridaceae
- Cystopteris bulbifera
- eastern North America
Equisetaceae
- Equisetum hyemale
- eastern North America
Fabaceae
Subfamily Faboideae
Tribe Amorpheae
- Amorpha fruticosa
- originally from se USA, now widespread across North America
Subfamily Faboideae
Tribe Phaseoleae
- Apios americana
- eastern North America
Grossulariaceae
- Ribes hirtellum 'Pixwell'
- northeastern North America
Hydrocharitaceae
- Elodea canadensis
- S. Canada to U.S.A.
- Vallisneria americana
- N. America to Honduras, Colombia, Caribbean
Juncaginaceae
- Triglochin maritima
- Temp. Northern Hemisphere, S. South America
W/C
Lentibulariaceae
- Utricularia gibba
- Trop. & Subtrop. Old World, America
- Utricularia vulgaris subsp. macrorhiza
- Siberia to Russian Far East and N. China, N. Japan, N. America
W/C
Lythraceae
Subfamily Lythroideae
Tribe Nesaeeae
- Decodon verticillatus
- eastern USA and Canada
W/C
Oleaceae
Subfamily
Tribe Oleeae
- Fraxinus americana
- USA
W/C
Orobanchaceae
Subfamily
Tribe Pedicularideae
- Pedicularis lanceolata
- central & eastern US & Canada
Penthoraceae
- Penthorum sedoides
- central & eastern US & Canada
Pinaceae
Subfamily Abietoideae
- Abies balsamea
- northeastern USA and eastern Canada
W/C
Poaceae
Subfamily Panicoideae
Tribe Andropogoneae
- Schizachyrium scoparium
- Canada to Mexico
Ranunculaceae
Subfamily Isopyroideae
Tribe Isopyreae
- Aquilegia canadensis
- USA, Canada
W/C
Smilacaceae
- Smilax tamnoides
- S. Ontario to C. & E. U.S.A.
Urticaceae
Subfamily
Tribe Urticeae
- Urtica dioica
- widely naturalized in temperate climates
W/C = Wild Collected
= indicates flowering in past 14 days
= images available for this accession
= map available for this accession
= accession added within past 90 days
data regenerated on Sat, 26 Jul 2025 02:08:18 -0400