Echinocereus subinermisDav Hir / Wikimedia Commons · CC BY-SA 3.0
Cactus

Echinocereus subinermis

A cactus of rocky slopes in the tropical deciduous oak forests of the Sierra Madre Occidental in north-western Mexico (Sonora, Sinaloa, Chihuahua, Durango), at about 200–1300 m. It is the least spiny species of its genus – the name subinermis (“almost unarmed”) refers to this; its blue-green, later purplish body has 5–11 ribs. Prized for its large, fragrant, bright yellow flowers up to 10–12 cm across, and easy to bring into bloom.

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Botanical fact sheet

Echinocereus subinermis Salm-Dyck ex Scheer

✓ Verified fact sheet Nov 5, 2026
Echinocereus subinermis
Photo: Dav Hir / Wikimedia CommonsCC BY-SA 3.0sourceInfringing image? Let us know
Taxonomy
Family: Cactaceae · Genus: Echinocereus10
Plant type
Perennial, succulent-stemmed cactus. Erect, initially mostly solitary, later may develop offsets at the base.
Native distribution
Native to the northwestern part of Mexico, in the states of Sonora and Sinaloa, as well as in the southwestern region of Chihuahua and Durango.12
Natural habitat
Occurs in dry, desert, and semi-desert areas, in dry shrublands. Characterized by low precipitation and well-drained soil in its natural habitat.
Height / growth form
Erect, rounded to cylindrical, ribbed-stemmed cactus. Typically reaches a height of about 10–25 cm. The number of ribs and the development of spines vary.
Flowering period
From late spring to early summer, typically with large, funnel-shaped yellow flowers.
Growth & dormancy period
The growth period is in spring and summer. In winter, it enters a dormant period under cool, dry conditions. Watering is generally not necessary during the winter rest.
Ecology
Drought-tolerant, xerophytic plant. Stores water in its fleshy stem. Its flowers can be pollinated by insects. Adapted to drought and strong sunlight in its natural environment.
Conservation status
DD Data deficient (IUCN)
The assessment of the species' conservation status is limited by insufficient distribution and population data. The DD classification does not imply that the species is endangered, nor does it confirm that it is safe.1415
Synonyms
2 synonyms
  • Echinocereus subinermis Salm-Dyck
  • Echinocereus subinermis luteus (Britton & Rose) Backeb.
11

Echinocereus subinermis is a species of flowering plant in the cactus family Cactaceae, native to north, northwestern, and central Mexico.

Sources (18)
  1. POWO – Plants of the World Online: Echinocereus subinermis · CC BY 3.0
  2. RHS – Echinocereus subinermis
  3. RHS – Echinocereus subinermis
  4. RHS – Echinocereus subinermis
  5. RHS – Echinocereus subinermis
  6. Planet Desert – Echinocereus subinermis
  7. Planet Desert – Echinocereus subinermis
  8. Planet Desert – Echinocereus subinermis
  9. Planet Desert – Echinocereus subinermis v. luteus
  10. GBIF Backbone Taxonomy – Echinocereus subinermis · Scientific name · CC BY 4.0
  11. GBIF – synonyms · Synonyms · CC BY 4.0
  12. GBIF – distributions (The World Checklist of Vascular Plants (WCVP); The IUCN Red List of Threatened Species) · Native distribution · CC BY 4.0
  13. Wikidata – Q1280450 · CC0
  14. Wikidata – IUCN Red List status (P141) · Conservation status · CC0
  15. IUCN Red List · Conservation status
  16. Wikimedia Commons – Echinocereus subinermis.JPG · CC BY-SA 3.0
  17. Wikipedia (de) – Echinocereus subinermis · CC BY-SA 4.0
  18. Wikipedia (en) – Echinocereus subinermis · CC BY-SA 4.0
Community knowledge

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Real data

How members water it

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Care guidelines

How it thrives

Partly general data for the genus Echinocereus
Waterlow
Lightfull sun
Humiditylowgeneral genus data
Min. temperature5 °C
Dry winter restDifficulty: ●○○○○✓ Not known to be toxic · general genus data

No monthly schedule is shown because cultivar-/species-level data is not yet sufficient. The general values above are guidance only.

Grow in loam-based compost with extra grit; water moderately in growth and not at all when dormant. It is prone to rot in winter.

⚠ Pets & children · genus Echinocereus
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At a glance

Echinocereus subinermis – what to know

Echinocereus subinermis – family: Cactaceae, genus: Echinocereus. Native range: Native to the northwestern part of Mexico, in the states of Sonora and Sinaloa, as well as in the southwestern region of Chihuahua and Durango. Care guidelines: light: full sun; water: low; min. 5 °C. One Perfect Plants Club member grows it (1 photos). It is not known to be toxic to cats or dogs.

Frequently asked questions

How often should I water Echinocereus subinermis?

Sparingly: let the soil dry out completely between waterings, and water even less in winter.

How much light does Echinocereus subinermis need?

It needs plenty of direct sun – the sunniest window, or outdoors in summer, suits it best.

How cold can Echinocereus subinermis get?

Keep it above 5 °C – it is frost-tender and needs a frost-free spot in winter.

Is Echinocereus subinermis toxic to cats and dogs?

It is not known to be toxic to cats or dogs.

When does Echinocereus subinermis flower?

Typical flowering time: May, June, July.

Community intelligence

What members’ data shows

When does it really bloom?

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Average watering interval

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Questions about this species

Same genus

Echinocereus

Data sources: GBIF.org – Echinocereus subinermis (CC BY 4.0) · Wikidata – Q1280450 (CC0) · Wikimedia Commons – Echinocereus subinermis.JPG (CC BY-SA 3.0) · Wikipedia – Echinocereus subinermis (CC BY-SA 4.0) · Care data is for guidance only.

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