genus
Rubberweeds
Hymenoxys
Field notes
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.
Species
Hymenoxys ambigens - Pinaleno Mountain rubberweed - Arizona New Mexico
Hymenoxys anthemoides - Rio Grande do Sul, Rio de Janeiro, Paraguay, Uruguay, Argentina
Hymenoxys biennis - Utah
Hymenoxys bigelovii - Utah Arizona New Mexico
Hymenoxys brachyactis - East View rubberweed - New Mexico
Hymenoxys brandegeei - Arizona New Mexico Colorado
Hymenoxys cabrerae - Argentina
Hymenoxys californica - California, Baja California
Hymenoxys chrysanthemoides - San Luis Potosí, Veracruz, Zacatecas, México State, Puebla, Oaxaca, Hidalgo
Hymenoxys cooperi - Cooper's rubberweed - California Nevada Arizona Utah Idaho Oregon New Mexico
Hymenoxys grandiflora - New Mexico Colorado Wyoming Montana Utah Idaho
Hymenoxys helenioides - intermountain rubberweed - Arizona New Mexico Colorado Utah
Hymenoxys hoopesii - owl claws - New Mexico Colorado Wyoming Montana Utah Idaho Oregon Nevada California
Hymenoxys insignis - Nuevo León, Coahuila, Chihuahua
Hymenoxys jamesii - Arizona
Hymenoxys lemmonii - Lemmon's rubberweed - Arizona Oregon Nevada California
Hymenoxys multiflora - Texas New Mexico
Hymenoxys mutica - California
Hymenoxys odorata - bitter rubberweed - California Arizona New Mexico Texas Oklahoma Colorado Kansas Maine South Carolina Alabama, Baja California, Baja California Sur, Sonora, Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas
Hymenoxys quinquesquamata - rincon rubberweed - Arizona New Mexico
Hymenoxys richardsonii - pingue rubberweed, Colorado rubberweed - Alberta, Saskatchewan, Montana Idaho Wyoming Utah Colorado New Mexico Arizona Texas Nebraska North Dakota Nevada
Hymenoxys robusta - Bolivia, Argentina, Peru
Hymenoxys rusbyi - Arizona New Mexico
Hymenoxys subintegra - Arizona rubberweed - Arizona Utah
Hymenoxys texana - prairie dawn - Texas
Hymenoxys tweediei - Argentina
Hymenoxys vaseyi - Texas New Mexico
formerly included
Read more on WikipediaChildren
- Owlsclaws native
- Pingue Rubberweed native
- Alpine Sunflower native
- Cooper's Rubberweed native
- Bitter Hymenoxys native
- Brandegee's Hymenoxys
- Texas Prairie Dawn native
- South American Rubberweed
- Bigelow's Rubberweed
- Hymenoxys insignis
- Rincon Rubberweed
- Rusby's Rubberweed
- Arizona Rubberweed native
- Alkali Hymenoxys native
- Pinaleno Mountain Rubberweed
- East View Rubberweed
- Jame's Rubberweed
- Pygmy Prairiedawn
- Intermountain Rubberweed
- Vasey's Rubberweed
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Key traits
- Layer
- Herbaceous plants
- Plant type
- Annual Perennial Wildflower
From USDA PLANTS.
Top native rubberweeds All
Native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
-
Pingue Rubberweed
Hymenoxys richardsonii
bees
3
food
3
flowers
5
-
Owlsclaws
Hymenoxys hoopesii
bees
3
food
1
flowers
11
-
Bitter Hymenoxys
Hymenoxys odorata
bees
2
food
1
flowers
19
-
Cooper's Rubberweed
Hymenoxys cooperi
bees
2
flowers
4
-
Alpine Sunflower
Hymenoxys grandiflora
bees
1
flowers
13
-
Arizona Rubberweed
Hymenoxys subintegra
bees
1
-
Texas Prairie Dawn
Hymenoxys texana
-
Alkali Hymenoxys
Hymenoxys lemmonii