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Rusby's rubberweed

Hymenoxys rusbyi

Rusby's rubberweed is a perennial wildflower in the daisy family, native to open areas and forest edges at 1,500 to 2,500 m in Arizona and New Mexico. It is a wild species seldom grown in gardens, so care is mostly about giving it sun, good drainage and little fuss.

Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly once established; let the soil dry out between waterings.
Soil
Well-drained, gritty or sandy soil; tolerates poor, rocky soil.
Temperature
Hardy to cold winters at elevation; protect from prolonged frost in containers.
How easy
Moderate
Native range
Arizona to New Mexico

About

Hymenoxys rusbyi is a North American species of flowering plant in the daisy family known by the common names Rusby's rubberweed or Rusby's bitterweed. It has been found only in the states of Arizona and New Mexico in the southwestern United States.

Hymenoxys rusbyi grows in open areas, generally at the edges of pine-oak forests at elevations of 1,500–2,500 meters (4,900–8,200 ft). It is a perennial herb up to 150 cm (4.9 ft) tall. One plant can produce sometimes as many as 250 flower heads in a branching, flat-topped array. Each head has 6–8 yellow ray flowers and 25–50 tiny yellow disc flowers.

Other Hymenoxys plants

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 · Intermountain rubberweed · Owl's-claws · Hymenoxys insignis

Text excerpted from the Wikipedia article Hymenoxys rusbyi by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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.

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