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Hymenoxys helenioides
Also called Intermountain Bitterweed, Intermountain Hymenoxys
Hymenoxys helenioides is a North American species of flowering plant in the daisy family known by the common name intermountain rubberweed. It is native to Arizona, Utah, Colorado, and New Mexico in the western United States.
Hymenoxys helenioides is a perennial herb up to 50 cm (20 in) tall. One plant generally produces as many as 50 flower heads. Each head has 10–16 ray flowers and 50–150 disc flowers.
According to Plants of the World Online, intermountain rubberweed is native to just three western states; Colorado, Utah, and Arizona. However, according to the Natural Resources Conservation Service it also grows in San Juan County, New Mexico and Clark County, Nevada, though nowhere else in these states. The NRCS also records it in just Apache County, Arizona.
Pinaleno Mountain rubberweed · South American rubberweed · Colorado Rubberweed · Bigelow's rubberweed · East View rubberweed · Brandegee's four-nerve-daisy · Hymenoxys cabrerae · Cooper's rubberweed · Graylocks Four Nerve Daisy · Owl's-claws · Hymenoxys insignis · Jame's rubberweed
Text excerpted from the Wikipedia article Hymenoxys helenioides by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
