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Rubberweeds
Hymenoxys
Hymenoxys (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America. It was named by Alexandre Henri Gabriel de Cassini in 1828.
Plants of this genus are toxic to sheep due to the presence of the sesquiterpene lactone hymenoxon.
26 branches of this genus, most-observed first
owlsclaws
speciesHymenoxys hoopesii
Pingue Rubberweed
speciesHymenoxys richardsonii
Alpine Sunflower
speciesHymenoxys grandiflora
Cooper's rubberweed
speciesHymenoxys cooperi
bitter hymenoxys
speciesHymenoxys odorata
Brandegee's hymenoxys
speciesHymenoxys brandegeei
Hymenoxys integrifolia
speciesHymenoxys integrifolia
Texas Prairie Dawn
speciesHymenoxys texana
South American Rubberweed
speciesHymenoxys anthemoides
Bigelow's Rubberweed
speciesHymenoxys bigelovii
Hymenoxys insignis
speciesHymenoxys insignis
Rincon Rubberweed
speciesHymenoxys quinquesquamata
Rusby's rubberweed
speciesHymenoxys rusbyi
Arizona Rubberweed
speciesHymenoxys subintegra
Hymenoxys robusta
speciesHymenoxys robusta
alkali hymenoxys
speciesHymenoxys lemmonii
Pinaleno Mountain Rubberweed
speciesHymenoxys ambigens
East View Rubberweed
speciesHymenoxys brachyactis
Hymenoxys megapotamica
speciesHymenoxys megapotamica
Hymenoxys cabrerae
speciesHymenoxys cabrerae
Jame's Rubberweed
speciesHymenoxys jamesii
Hymenoxys pinetorum
speciesHymenoxys pinetorum
Hymenoxys chrysanthemoides
speciesHymenoxys chrysanthemoides
Intermountain Rubberweed
speciesHymenoxys helenioides
Vasey's Rubberweed
speciesHymenoxys vaseyi
Pygmy Prairiedawn
speciesHymenoxys perpygmaea
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Hymenoxys in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 49038.