North America Non-native Plant

Cotoneaster Bacillaris

Botanical name: Cotoneaster bacillaris

USDA symbol: COBA16

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

Synonyms: Cotoneaster affinis Lindl. var. bacillaris (Wall. ex Lindl.) C.K. Schneid. (COAFB2)   

The Mystery of Cotoneaster bacillaris: A Plant That Keeps Its Secrets Ever stumbled across a plant name that seems to slip through your fingers like morning mist? Meet Cotoneaster bacillaris – a botanical enigma that’s got even seasoned gardeners scratching their heads. This member of the rose family (Rosaceae) is ...

The Mystery of Cotoneaster bacillaris: A Plant That Keeps Its Secrets

Ever stumbled across a plant name that seems to slip through your fingers like morning mist? Meet Cotoneaster bacillaris – a botanical enigma that’s got even seasoned gardeners scratching their heads. This member of the rose family (Rosaceae) is one of those plants that makes you realize just how vast and mysterious the plant kingdom can be.

What We Know (And What We Don’t)

Here’s the thing about Cotoneaster bacillaris: it’s surprisingly elusive in the gardening world. While we know it belongs to the Cotoneaster genus – a group known for their small, colorful berries and hardy nature – specific information about this particular species is scarce. The plant has a documented synonym, Cotoneaster affinis var. bacillaris, which suggests it may have once been considered a variety of another species rather than a standalone species.

This lack of readily available information could mean several things. It might be a rarely encountered species, possibly with a very limited natural range, or it could be that modern taxonomists have reclassified it under a different name entirely. Plant names do evolve over time as our understanding of plant relationships improves!

The Cotoneaster Connection

While we can’t provide specific details about Cotoneaster bacillaris itself, we can tell you about its plant family. Cotoneasters are generally small to medium-sized shrubs known for:

  • Small, simple leaves that often turn brilliant colors in fall
  • Tiny white or pink flowers that bloom in spring
  • Bright red, orange, or black berries that persist into winter
  • Dense, often spreading growth habits

A Word of Caution

Here’s where things get important for responsible gardeners: many Cotoneaster species are non-native and some have become invasive in certain regions. Without specific information about Cotoneaster bacillaris’s native range, invasive status, or growing characteristics, we can’t recommend whether this plant belongs in your garden.

If you’ve encountered this plant name in old gardening literature or botanical references, it’s worth doing some detective work before adding it to your landscape.

For the Plant Detectives Out There

If you’re curious about this mysterious Cotoneaster, here’s what we’d suggest:

  • Consult with local botanists or extension offices who might have regional knowledge
  • Check with botanical gardens or arboretums that specialize in rare or unusual plants
  • Consider exploring well-documented native alternatives instead
  • If you do find specimens, ensure they’re from reputable, responsible sources

Better Safe Than Sorry

Given the uncertainty around this species and the known invasive potential of some Cotoneaster species, we’d recommend focusing on native shrubs that provide similar benefits without the risks. Your local native plant society can point you toward indigenous species that offer beautiful berries, fall color, and wildlife value – all while supporting your local ecosystem.

Sometimes in gardening, the most interesting stories are about the plants that remain mysterious. Cotoneaster bacillaris might be one of those botanical puzzles that reminds us there’s still so much to discover and understand in the plant world.

Cotoneaster Bacillaris

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

Cotoneaster Medik. - cotoneaster

Species

Cotoneaster bacillaris Wall. ex Lindl.

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