North America Non-native Plant

Crataegus Bullatus

Botanical name: Crataegus bullatus

USDA symbol: CRBU5

Native status: Not native but doesn't reproduce and persist in the wild

Crataegus bullatus: A Mysterious Member of the Hawthorn Family If you’ve stumbled across the name Crataegus bullatus in your plant research, you’ve discovered one of the more enigmatic members of the hawthorn genus. This particular species exists in a sort of botanical twilight zone – mentioned in some scientific literature ...

Crataegus bullatus: A Mysterious Member of the Hawthorn Family

If you’ve stumbled across the name Crataegus bullatus in your plant research, you’ve discovered one of the more enigmatic members of the hawthorn genus. This particular species exists in a sort of botanical twilight zone – mentioned in some scientific literature but with surprisingly little detailed information readily available to home gardeners.

What We Know (And What We Don’t)

Crataegus bullatus belongs to the diverse hawthorn genus, which includes dozens of species known for their spring flowers, colorful fall berries, and often thorny branches. However, unlike its well-documented cousins like the common hawthorn (Crataegus monogyna) or downy hawthorn (Crataegus mexicana), C. bullatus remains somewhat of a mystery plant.

The limited available information suggests this is likely a shrub or small tree, following the typical hawthorn growth pattern. The name bullatus refers to a blistered or puckered leaf surface texture, which may be one of its distinguishing characteristics.

Geographic Distribution and Native Status

Unfortunately, the native range and geographic distribution of Crataegus bullatus remain unclear from readily available sources. This uncertainty makes it difficult to determine where this species naturally occurs or whether it would be considered native to any particular region.

Should You Plant It?

Here’s where things get tricky. With limited information about this species’ characteristics, growing requirements, and ecological impact, it’s challenging to make a solid recommendation either way. If you’re considering this plant, here are some important points to consider:

  • Verify the source and accuracy of plant identification
  • Ensure any plant material is ethically and legally sourced
  • Consider well-documented native hawthorn alternatives for your region
  • Consult with local extension services or native plant societies

Better-Known Hawthorn Alternatives

If you’re drawn to the hawthorn family but want more predictable results, consider these well-documented native options:

  • Research native hawthorn species in your specific region
  • Look for locally adapted varieties with known growing requirements
  • Choose species with documented wildlife benefits
  • Select plants from reputable native plant nurseries

Growing Conditions (General Hawthorn Guidance)

While specific information about C. bullatus is limited, most hawthorns share similar preferences:

  • Full sun to partial shade
  • Well-draining soils
  • Moderate water requirements once established
  • Generally hardy and adaptable

The Bottom Line

Crataegus bullatus represents one of those botanical puzzles that remind us how much we still don’t know about the plant world. While the mystery is intriguing, practical gardeners might be better served by choosing well-documented native hawthorn species with known benefits and growing requirements.

If you do encounter this species or have reliable information about it, consider sharing your knowledge with botanical databases and native plant organizations – you might help solve this little botanical mystery!

Crataegus Bullatus

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

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Crataegus L. - hawthorn

Species

Crataegus bullatus Boiss. [excluded]

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