North America Native Plant

Runyon’s Beehive Cactus

Botanical name: Coryphantha macromeris var. runyonii

USDA symbol: COMAR2

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Coryphantha macromeris (Engelm.) Lem. ssp. runyonii (Britton & Rose) N.P. Taylor (COMAR5)  âš˜  Coryphantha runyonii Britton & Rose (CORU7)  âš˜  Mammillaria runyonii (Britton & Rose) Cory (MARU6)   

Runyon’s Beehive Cactus: A Rare Texas Treasure for Desert Gardens If you’re looking to add a touch of authentic Texas desert charm to your landscape, Runyon’s beehive cactus (Coryphantha macromeris var. runyonii) might just be the perfect specimen plant you’ve been searching for. This distinctive little cactus brings both beauty ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ 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. ⚘

Runyon’s Beehive Cactus: A Rare Texas Treasure for Desert Gardens

If you’re looking to add a touch of authentic Texas desert charm to your landscape, Runyon’s beehive cactus (Coryphantha macromeris var. runyonii) might just be the perfect specimen plant you’ve been searching for. This distinctive little cactus brings both beauty and conservation value to specialized garden settings, though it’s definitely not your typical backyard plant!

What Makes Runyon’s Beehive Cactus Special

This perennial cactus is a true Texas native, found exclusively in the Lone Star State’s southernmost regions. Its compact, globe-shaped form features prominent tubercles arranged in mesmerizing spiral patterns, creating the beehive appearance that gives it its common name. During spring and summer, cheerful yellow flowers crown this architectural beauty, adding a burst of color to desert landscapes.

Where Does It Grow Naturally

Runyon’s beehive cactus calls Texas home, specifically thriving in the challenging conditions of South Texas and the Rio Grande Valley. This native species has adapted to the region’s intense heat, minimal rainfall, and rocky soils over thousands of years.

A Word of Caution: This Plant is Rare

Before you get too excited about adding this beauty to your collection, there’s something important you need to know. Runyon’s beehive cactus has a conservation status that indicates it may be rare or vulnerable in the wild. If you’re determined to grow this special plant, please ensure you source it only from reputable nurseries that propagate their specimens rather than collecting from wild populations. Never dig up plants from their natural habitat!

Is This Cactus Right for Your Garden

Runyon’s beehive cactus isn’t for everyone, but it’s perfect for specific garden styles and growing situations:

  • Desert and xeriscape gardens
  • Rock gardens with excellent drainage
  • Container gardens and patio displays
  • Cactus and succulent collections
  • Specimen plantings where its unique form can shine

This plant works beautifully as an accent piece, drawing the eye with its geometric form and seasonal blooms. Its compact size makes it ideal for smaller spaces where you want maximum visual impact.

Growing Conditions and Care

Like most desert natives, Runyon’s beehive cactus has some non-negotiable requirements:

Sunlight: Full sun is essential. This plant needs at least 6-8 hours of direct sunlight daily to thrive.

Soil: Drainage is absolutely critical. Plant in sandy, gravelly, or rocky soil that drains immediately after watering. Heavy clay or moisture-retentive soils will quickly kill this desert dweller.

Water: Once established, this cactus is extremely drought tolerant and actually prefers minimal water. Overwatering is the quickest way to lose your plant.

Climate: Hardy in USDA zones 9b-11, this cactus can handle heat but may need protection from hard freezes.

Planting and Care Tips

Success with Runyon’s beehive cactus comes down to mimicking its natural desert environment:

  • Plant in a raised bed or mounded area to ensure perfect drainage
  • Amend heavy soils with coarse sand, perlite, or fine gravel
  • Water sparingly – only when soil is completely dry
  • Provide protection from freezing temperatures if you’re on the edge of its hardiness range
  • Avoid fertilizing; desert plants are adapted to lean soils

Benefits for Wildlife and Pollinators

Despite its spiny appearance, Runyon’s beehive cactus plays an important role in supporting local ecosystems. Its bright yellow flowers attract native bees, small butterflies, and other pollinators during its blooming season. By growing this native plant, you’re helping support the same wildlife species that have co-evolved with it in Texas.

The Bottom Line

Runyon’s beehive cactus is a fascinating native plant that deserves a place in specialized desert gardens, but it’s not a plant for casual gardeners or typical landscapes. If you have the right conditions – excellent drainage, full sun, and minimal water – and you can source it responsibly, this rare Texas native makes a stunning and conservation-worthy addition to xeriscape gardens and cactus collections. Just remember: respect its wild populations and always choose nursery-propagated plants over wild-collected specimens.

Runyon’s Beehive 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

Coryphantha (Engelm.) Lem. - beehive cactus

Species

Coryphantha macromeris (Engelm.) Lem. - nipple beehive cactus

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