North America Native Plant

Cactus Apple

Botanical name: Opuntia engelmannii var. flexospina

USDA symbol: OPENF2

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Opuntia flexospina Griffiths (OPFL)  âš˜  Opuntia strigil Engelm. var. flexospina (Griffiths) L.D. Benson (OPSTF)   

Cactus Apple: A Rare Texas Native Worth Protecting Meet the cactus apple (Opuntia engelmannii var. flexospina), a fascinating native plant that calls the Lone Star State home. This prickly character might just be the perfect addition to your Texas garden – if you can find it responsibly sourced, that is. ...

Rare plant alert!

Region: Conservation status by state

Status: S5T1Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Cactus Apple: A Rare Texas Native Worth Protecting

Meet the cactus apple (Opuntia engelmannii var. flexospina), a fascinating native plant that calls the Lone Star State home. This prickly character might just be the perfect addition to your Texas garden – if you can find it responsibly sourced, that is.

What Makes This Cactus Special?

The cactus apple belongs to the beloved prickly pear family, and like its cousins, it’s a hardy perennial that knows how to survive in tough conditions. What sets this particular variety apart is its rarity – with a conservation status that suggests it needs our attention and care.

You might also encounter this plant listed under its synonyms: Opuntia flexospina or Opuntia strigil var. flexospina. But don’t let the fancy names fool you – this is a down-to-earth Texas native through and through.

Where You’ll Find It Growing Wild

This cactus apple is a true Texan, naturally occurring only within the state’s borders. Its limited geographic range makes it a special find for native plant enthusiasts who want to showcase authentic regional flora.

Growth Habits and Appearance

As a multi-stemmed woody shrub, the cactus apple typically stays under 13-16 feet tall, though it can occasionally surprise you by growing taller or developing a single stem under the right conditions. Like most prickly pears, it grows with characteristic flat, paddle-shaped segments that create an instantly recognizable silhouette in the landscape.

A Word of Caution: Rarity Matters

Before you get too excited about adding this plant to your garden, there’s something important you need to know. The cactus apple has a Global Conservation Status of S5T1Q, indicating it may be of conservation concern. This means you should only consider planting it if you can source it responsibly – never collect from wild populations.

If you’re interested in growing this rare beauty, look for:

  • Reputable native plant nurseries that propagate their own stock
  • Plant sales from botanical gardens or conservation organizations
  • Seed exchanges from legitimate sources

Why Choose Native?

As a Texas native, the cactus apple is perfectly adapted to local climate conditions and soil types. Native plants like this one require less water, fewer fertilizers, and minimal pest control once established – making them excellent choices for sustainable landscaping.

Plus, by choosing native species, you’re supporting local ecosystems and helping preserve Texas’s natural heritage for future generations.

Garden Design Ideas

While specific growing information for this variety is limited, prickly pears in general make excellent additions to:

  • Xeriscapes and drought-tolerant gardens
  • Rock gardens and desert-themed landscapes
  • Wildlife gardens (many cacti support native pollinators and provide shelter)
  • Native plant collections

The Bottom Line

The cactus apple is a worthy addition to any Texas native plant garden, but its rarity means we all have a responsibility to grow it thoughtfully. If you can find responsibly sourced plants, you’ll be helping preserve this special piece of Texas flora while adding authentic regional character to your landscape.

Remember: when it comes to rare native plants, conservation comes first, gardening second. But when done right, both can work hand in hand to protect and celebrate our natural heritage.

Cactus Apple

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

Opuntia Mill. - pricklypear

Species

Opuntia engelmannii Salm-Dyck ex Engelm. - cactus apple

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