North America Non-native Plant

Rosa Acicularis Acicularis Var. Nipponensis

Botanical name: Rosa acicularis acicularis var. nipponensis

USDA symbol: ROACN2

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

Rosa acicularis acicularis var. nipponensis: A Mysterious Rose Variety If you’ve stumbled across the name Rosa acicularis acicularis var. nipponensis in your botanical travels, you’ve encountered one of gardening’s more elusive mysteries. This particular variety of rose is so obscure that even seasoned gardeners and botanists might scratch their heads ...

Rosa acicularis acicularis var. nipponensis: A Mysterious Rose Variety

If you’ve stumbled across the name Rosa acicularis acicularis var. nipponensis in your botanical travels, you’ve encountered one of gardening’s more elusive mysteries. This particular variety of rose is so obscure that even seasoned gardeners and botanists might scratch their heads when trying to pin down its specific characteristics.

What We Know (And Don’t Know)

Rosa acicularis acicularis var. nipponensis belongs to the rose family, but beyond its botanical classification, reliable information about this specific variety is remarkably scarce. The name suggests it may have some connection to Japan (nipponensis often indicates Japanese origin), but even this connection isn’t clearly documented in standard horticultural references.

Without confirmed details about its native status, geographical distribution, or growth characteristics, it’s challenging to provide definitive guidance about where this plant naturally occurs or how it might perform in your garden.

The Challenge for Home Gardeners

Here’s the honest truth: if you’re considering adding Rosa acicularis acicularis var. nipponensis to your garden, you’re venturing into uncharted territory. The lack of readily available information about this variety means:

  • Growing conditions are unknown
  • Hardiness zones are uncertain
  • Mature size and growth habits are undocumented
  • Pollinator and wildlife benefits are unspecified
  • Care requirements remain a mystery

What This Means for Your Garden Plans

Without reliable information about this specific variety’s characteristics, invasive potential, or conservation status, it’s difficult to recommend for or against planting it. If you’ve encountered this plant name through a specialty nursery or botanical collection, your best bet is to:

  • Ask detailed questions about its origin and characteristics
  • Request information about its growth requirements
  • Inquire about its performance in your local climate
  • Consider well-documented native rose alternatives instead

Better-Known Native Rose Alternatives

If you’re drawn to native roses for your landscape, consider exploring well-documented species like Rosa carolina (Carolina rose), Rosa virginiana (Virginia rose), or other Rosa acicularis varieties with established horticultural information. These alternatives offer the beauty and ecological benefits of native roses with the advantage of proven growing guidance.

The Bottom Line

Rosa acicularis acicularis var. nipponensis remains something of a botanical enigma. While the mystery might intrigue plant collectors, most gardeners will find better success with roses that have well-established cultivation information. If you do encounter this variety, approach it as an experimental adventure rather than a reliable landscape staple.

Sometimes in gardening, the most honest advice is simply: We need more information. This appears to be one of those cases where patience and further research might eventually unlock the secrets of this elusive rose variety.

Rosa Acicularis Acicularis Var. Nipponensis

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

Rosa L. - rose

Species

Rosa acicularis Lindl. - prickly rose

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