Hymenoxys
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 Hymenoxys acaulis syn. Gaillardia acaulis
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Hymenoxys (Rubberweed or Bitterweed) is a genus of the botanical family Asteraceae. Plants of this genus are toxic to sheep due to the presence of the sesquiterpene lactone hymenoxon. There are 28 species.
Species include:
- Hymenoxys ambigens - Pinaleno Mountain rubberweed
- Hymenoxys brachyactis - East View rubberweed
- Hymenoxys cooperi - Cooper's rubberweed
- Hymenoxys helenioides - intermountain rubberweed
- Hymenoxys hoopesii - owl claws
- Hymenoxys lemmonii - Lemmon's rubberweed
- Hymenoxys odorata - bitter rubberweed
- Hymenoxys quinquesquamata - rincon rubberweed
- Hymenoxys richardsonii - pingue rubberweed, Colorado rubberweed
- Hymenoxys subintegra - Arizona rubberweed
- Hymenoxys texana - prairie dawn
[edit] External links
[edit] Further reading
- Everitt, J.H.; Lonard, R.L., Little, C.R. (2007). Weeds in South Texas and Northern Mexico. Lubbock: Texas Tech University Press. ISBN 0-89672-614-2
- Pfeiffer, F. A. and M. C. Calhoun. (1987). Effects of environmental, site, and phenological factors on hymenoxon content of bitterweed, Hymenoxys odorata. Journal of Animal Science 65 1553-62.
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