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Crucifixion thorn

Castela emoryi

Crucifixion thorn
Photo: Mike, CC BY-SA 4.0

Crucifixion thorn is a spiny, mostly leafless desert shrub that photosynthesizes through its green, sharp branches. It is native to the Mojave and Sonoran deserts and is rare in California, so it is usually grown only where it is legally and ethically sourced; keep it very dry and sunny.

Family
Simaroubaceae (Simaroub family)
Grows as
Shrub
Light
Full sun
Water
Water sparingly and let the soil dry fully between waterings; it is adapted to desert rainfall.
Soil
Very well-drained sandy or gritty mix
Temperature
18–35 °C; protect from frost below about 0 °C
How easy
Moderate
Native range
SE. California to Arizona and N. Mexico
Climate
desert or dry shrubland

About

Castela emoryi, with the common names crucifixion thorn, Emory's crucifixion-thorn, and Spanish: chaparro amargosa, is a shrub species in the genus Castela of the family Simaroubaceae.

Where it grows

The plant is native to the Mojave Desert and Sonoran Deserts of North America.

Uses

The Yavapai people traditionally used this as a medicinal plant, making a dermatological aid from its bud's sap.

Text excerpted from the Wikipedia article Castela emoryi 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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