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Pinaleno Mountain rubberweed

Hymenoxys ambigens

Pinaleno Mountain rubberweed
Photo: Patrick Alexander from Las Cruces, NM, CC0

Pinaleño Mountain rubberweed is a wild perennial herb of the daisy family, native to mountain areas of Arizona and New Mexico, growing up to about 1.5 m tall with threadlike leaves and clusters of small yellow flower heads. It is a native wildflower rather than a common garden plant, so it is best grown in open, well-drained, sunny spots that mimic its dry mountain habitat.

Family
Asteraceae (Daisy family)
Grows as
Perennial
Light
Full sun
Water
Water sparingly once established, allowing the soil to dry out between waterings.
Soil
Sandy or gritty, well-drained soil.
Temperature
Tolerates hot summers and cool winters typical of its high-desert mountain range; hardy to roughly -10 °C.
How easy
Moderate
Native range
Arizona

About

Hymenoxys ambigens is a species of flowering plant in the daisy family known by the common name Pinaleño Mountains rubberweed. It is native to the states of Arizona and New Mexico in the southwestern United States.

Hymenoxys ambigens is a perennial herb up to 150 cm (5 feet) tall. Leaves have very narrow lobes resembling branching threads. One plant can produce an array of 25–400 small yellow flower heads, each head with 3-5 ray flowers and 6–15 disc flowers.

Other Hymenoxys plants

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 · Jame's rubberweed

Text excerpted from the Wikipedia article Hymenoxys ambigens 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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