North America Native Plant

Lloyd’s Fishhook Cactus

Botanical name: Echinomastus mariposensis

USDA symbol: ECMA2

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Echinocactus mariposensis (Hester) D. Weniger, nom. nud. (ECMA)  âš˜  Neolloydia mariposensis (Hester) L.D. Benson (NEMA2)  âš˜  Sclerocactus mariposensis (Hester) N.P. Taylor (SCMA6)   

Lloyd’s Fishhook Cactus: A Rare Texas Treasure Worth Protecting Meet Lloyd’s fishhook cactus (Echinomastus mariposensis), one of Texas’s most precious and endangered cacti. This little barrel cactus might be small in stature, but it’s huge in conservation importance. If you’re lucky enough to encounter this rare beauty, you’re looking at ...

Rare plant alert!

Region: United States

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Threatened: Experiencing significant population decline or habitat loss that could lead to its endangerment if not addressed. ⚘

Region: United States

Lloyd’s Fishhook Cactus: A Rare Texas Treasure Worth Protecting

Meet Lloyd’s fishhook cactus (Echinomastus mariposensis), one of Texas’s most precious and endangered cacti. This little barrel cactus might be small in stature, but it’s huge in conservation importance. If you’re lucky enough to encounter this rare beauty, you’re looking at a plant that’s fighting for survival in the wild.

A Cactus with a Story

Lloyd’s fishhook cactus is a true Texas native, but its world is incredibly small. This remarkable succulent calls only a tiny slice of the Big Bend region home, making it one of the most geographically restricted cacti in North America. Its rarity has earned it a concerning conservation status: it’s listed as Threatened and considered Imperiled due to its extremely limited range and small population.

You might also see this cactus listed under several scientific names in older references, including Neolloydia mariposensis or Sclerocactus mariposensis, but Echinomastus mariposensis is the currently accepted name.

Where to Find It (If You’re Lucky)

This special cactus grows exclusively in Texas, specifically in the Chihuahuan Desert region of the Big Bend area. Its entire natural range is incredibly limited, which is precisely why it’s so endangered.

What Makes It Special

Lloyd’s fishhook cactus is a small barrel cactus that typically grows as a solitary stem, though it can occasionally form small clusters. True to its name, it sports distinctive hooked spines that curve like tiny fishhooks, giving it both protection and its memorable common name.

In spring, this little cactus produces stunning pink to magenta flowers that seem almost too large for the plant itself. These blooms are not just beautiful—they’re also important for local pollinators, attracting native bees and other desert insects that have co-evolved with desert plants.

Should You Grow Lloyd’s Fishhook Cactus?

Important Conservation Note: Due to its threatened status and extreme rarity, this cactus should only be grown if obtained from reputable, licensed nurseries that propagate from legally collected seeds or rescued plants. Never collect from the wild, and always verify the source of any plant you purchase.

If you can find responsibly sourced specimens, Lloyd’s fishhook cactus can be a meaningful addition to specialized cactus collections. Here’s what you need to know:

Growing Conditions

This desert native demands conditions that mimic its harsh natural habitat:

  • Sunlight: Full sun is essential
  • Soil: Extremely well-draining, mineral-rich soil with excellent drainage
  • Water: Minimal water needs; drought-tolerant once established
  • Climate: Best suited for USDA hardiness zones 9-11
  • Humidity: Prefers low humidity desert conditions

Perfect Garden Settings

Lloyd’s fishhook cactus shines in:

  • Specialized cactus and succulent gardens
  • Desert landscape designs
  • Rock gardens with excellent drainage
  • Container gardens (easier to control growing conditions)
  • Educational or conservation-focused plant collections

Care Tips for Success

Growing this rare cactus successfully requires attention to detail:

  • Drainage is everything: Use a specialized cactus mix with added pumice or perlite
  • Water sparingly: Allow soil to dry completely between waterings
  • Protect from excess moisture: Provide shelter from prolonged rain
  • Minimal fertilization: Light feeding with low-nitrogen cactus fertilizer in growing season
  • Winter protection: Protect from freezing temperatures if outside its hardiness range

The Conservation Connection

By growing Lloyd’s fishhook cactus responsibly, you’re not just adding a unique plant to your collection—you’re participating in conservation. Each plant grown from ethical sources helps preserve genetic diversity and reduces pressure on wild populations.

Consider this cactus a living reminder of the incredible biodiversity hiding in Texas’s desert regions and the importance of protecting these special places for future generations.

Remember: if you can’t find responsibly sourced Lloyd’s fishhook cactus, there are other beautiful and less threatened Echinomastus species that can provide similar aesthetic appeal without the conservation concerns. Always choose plants that align with both your gardening goals and conservation values.

Lloyd’s Fishhook Cactus

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Cactaceae Juss. - Cactus family

Genus

Echinomastus Britton & Rose - fishhook cactus

Species

Echinomastus mariposensis Hester - Lloyd's fishhook cactus

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA