Hymenoxys

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Hymenoxys
Hymenoxyshoopesii.JPG
Hymenoxys hoopesii
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Helenieae
Genus: Hymenoxys
Cass.
Type species
Hymenoxys anthemoides
(Juss.) Cass. [1]
Synonyms [2]
  • PlummeraA.Gray
  • DugaldiaCass.
  • ActinellaJuss. ex Nutt.
  • PhileozeraBuckley
  • MacdougaliaA.Heller

Hymenoxys (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America. [3] [1] [4] It was named by Alexandre Henri Gabriel de Cassini in 1828. [1]

Plants of this genus are toxic to sheep due to the presence of the sesquiterpene lactone hymenoxon. [5] [6] [7]

Species [2] [8] [9] [10] [11]
formerly included [11]

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Hymenoxys cooperi is a species of flowering plant in the daisy family known by the common name Cooper's rubberweed. It is native to the southwestern United States and Great Basin, where it grows in rocky soils in arid regions from southern California to New Mexico, north as far as Idaho and Oregon.

<i>Hymenoxys odorata</i> Species of flowering plant

Hymenoxys odorata is a species of flowering plant in the daisy family known by the common names bitter rubberweed and western bitterweed. It is native to the southwestern and south-central United States from southern California to Texas north as far as Kansas and Colorado, as well as northern Mexico. It grows in dry regions.

<i>Tetraneuris</i>

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<i>Tetraneuris acaulis</i>

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Tetraneuris scaposa is a North American species of plants in the sunflower family. It grows in the southwestern and south-central United States and northern Mexico.

<i>Hymenoxys richardsonii</i> Species of plant

Hymenoxys richardsonii, the pingue hymenoxys or pingue rubberweed, is a North American species of plants in the sunflower family. It is widespread across the western United States and western Canada from Arizona, New Mexico, and western Texas north as far as Alberta and Saskatchewan.

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<i>Brickellia microphylla</i> Species of flowering plant

Brickellia microphylla, the littleleaf brickellbush, is a flowering plant species in the daisy family native to western North America.

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Hymenoxys brandegeei is a species of flowering plant in the daisy family known by the common names Brandegee's four-nerve daisy, Brandegee's rubberweed or western bitterweed. It is native to the states of Arizona, Colorado, and New Mexico in the southwestern United States.

<i>Hymenoxys grandiflora</i> Species of flowering plant

Hymenoxys grandiflora is a North American species of flowering plant in the daisy family known by the common names graylocks four-nerve daisy, graylocks rubberweed, or old man of the mountain. It is native to high elevations in the Rocky Mountains of the western United States, in the states of Montana, Idaho, Wyoming, Utah, Colorado, and New Mexico.

Tetraneuris linearifolia is a North American species of plants in the sunflower family, known by the common name fineleaf fournerved daisy. It grows in the south-central United States and northern Mexico.

References

  1. 1 2 3 Tropicos, Hymenoxys Cass.
  2. 1 2 "Flann, C (ed) 2009+ Global Compositae Checklist". Archived from the original on 2014-12-02. Retrieved 2014-12-02.
  3. ↑ Cassini, Alexandre Henri Gabriel de, in Cuvier, F. 1828. Dictionnaire des Sciences Naturelles [Second edition] 55: 278–279in French
  4. ↑ Flora of North America, Bitterweed, rubberweed, Hymenoxys Cassini 1828.
  5. ↑ 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
  6. ↑ 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.
  7. ↑ Texas A&M University, Toxicity: H. odorata Archived 2007-07-03 at the Wayback Machine
  8. ↑ Biota of North America Program 2013 county distribution maps
  9. ↑ Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100.
  10. ↑ The Plant List search for Hymenoxys
  11. 1 2 The Plant List, search for Hymenoxys


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