North America Native Plant

Berlandier’s Sundrops

Botanical name: Calylophus berlandieri pinifolius

USDA symbol: CABEP2

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Calylophus drummondianus Spach (CADR4)  âš˜  Calylophus serrulatus (Nutt.) P.H. Raven var. spinulosus (Nutt. ex Torr. & A. Gray) Shinners (CASES2)  âš˜  Meriolix capillifolia (Scheele) Small (MECA11)  âš˜  Meriolix hillii Small (MEHI5)  âš˜  Meriolix melanoglottis Rydb. ex Small (MEME2)  âš˜  Oenothera serrulata Nutt. ssp. pinifolia (Engelm. ex A. Gray) Munz (OESEP)   

Berlandier’s Sundrops: A Native Wildflower for Southern Gardens If you’re looking to add authentic regional character to your garden while supporting local ecosystems, Berlandier’s sundrops (Calylophus berlandieri pinifolius) might just be the native wildflower you’ve been seeking. This perennial beauty brings a touch of the American Southwest right to your ...

Berlandier’s Sundrops: A Native Wildflower for Southern Gardens

If you’re looking to add authentic regional character to your garden while supporting local ecosystems, Berlandier’s sundrops (Calylophus berlandieri pinifolius) might just be the native wildflower you’ve been seeking. This perennial beauty brings a touch of the American Southwest right to your backyard, though it remains one of the more mysterious members of the native plant world.

What is Berlandier’s Sundrops?

Berlandier’s sundrops is a native perennial forb—essentially a non-woody flowering plant that comes back year after year. Unlike shrubs or trees, this plant lacks significant woody tissue and keeps its growing points at or below ground level, making it perfectly adapted to survive harsh conditions and return each growing season.

This plant has quite the collection of historical names, having been shuffled around the botanical naming system over the years. You might find it listed under various synonyms including Calylophus drummondianus, Meriolix capillifolia, or several Oenothera classifications in older references.

Where Does It Call Home?

Berlandier’s sundrops is a true child of the American Southwest, naturally occurring across New Mexico, Oklahoma, and Texas. This limited but significant range tells us a lot about the plant’s preferences—it’s adapted to the unique climate and soil conditions of this region.

Why Choose Berlandier’s Sundrops?

Here are several compelling reasons to consider this native wildflower:

  • True regional native: Supporting plants that naturally belong in your area helps maintain local ecosystem balance
  • Perennial reliability: Once established, it should return each year without replanting
  • Low-maintenance potential: Native plants typically require less water, fertilizer, and pest control than non-natives
  • Authentic landscape character: Creates genuine regional ambiance rather than generic garden appeal

Garden Design and Landscape Role

While specific information about this particular variety is limited, Berlandier’s sundrops likely works well in:

  • Native plant gardens focusing on regional species
  • Wildflower meadows and naturalized areas
  • Xeriscaping projects emphasizing drought-tolerant plants
  • Mixed perennial borders with other southwestern natives

Growing Conditions and Care

Based on its native range, Berlandier’s sundrops likely prefers:

  • Climate: USDA hardiness zones 7-9, matching its natural distribution
  • Soil: Well-draining soils, possibly sandy or rocky conditions
  • Water: Drought tolerance once established, minimal supplemental watering needed
  • Sun exposure: Full sun to partial shade, typical for most wildflowers

The Reality Check

Here’s the honest truth: specific growing information for Calylophus berlandieri pinifolius is surprisingly scarce. This subspecies seems to be one of those plants that botanists know exists but gardeners haven’t widely embraced yet. If you’re drawn to this particular variety, you might need to do some detective work or experimentation.

Consider reaching out to native plant societies in Texas, Oklahoma, or New Mexico, or contact botanical gardens in those states. They may have hands-on experience with this specific plant that hasn’t made it into common gardening literature yet.

Pollinator and Wildlife Potential

While specific data isn’t available for this subspecies, native wildflowers generally provide valuable resources for local pollinators, birds, and other wildlife. As a member of the evening primrose family, it likely produces flowers that attract native bees, butterflies, and other beneficial insects.

Should You Plant It?

If you live within its native range and want to experiment with a truly regional species, Berlandier’s sundrops could be an interesting addition to your native plant collection. However, given the limited growing information available, it might be wise to start with better-documented native alternatives and add this one as you gain experience with regional wildflowers.

The plant’s native status means you won’t be introducing anything potentially harmful to your local ecosystem—always a good thing when gardening responsibly. Just be prepared for some trial and error as you learn what this particular wildflower needs to thrive in your specific garden conditions.

Berlandier’s Sundrops

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Myrtales

Family

Onagraceae Juss. - Evening Primrose family

Genus

Calylophus Spach - sundrops

Species

Calylophus berlandieri Spach - Berlandier's sundrops

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