North America Non-native Plant

Shady Woodsorrel

Botanical name: Oxalis exilis

USDA symbol: OXEX2

Life cycle: perennial

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Shady Woodsorrel: A Mysterious Member of the Oxalis Family If you’ve stumbled across the name shady woodsorrel (Oxalis exilis) in your gardening research, you’re not alone in wondering what exactly this plant is all about. This lesser-known member of the wood sorrel family is something of an enigma in the ...

Shady Woodsorrel: A Mysterious Member of the Oxalis Family

If you’ve stumbled across the name shady woodsorrel (Oxalis exilis) in your gardening research, you’re not alone in wondering what exactly this plant is all about. This lesser-known member of the wood sorrel family is something of an enigma in the gardening world, with limited information available compared to its more famous cousins.

What We Know About Shady Woodsorrel

Shady woodsorrel is a perennial forb, which simply means it’s a non-woody herbaceous plant that comes back year after year. Like other plants in the Oxalis family, it likely has the characteristic clover-like leaves and delicate flowers that make wood sorrells recognizable, though specific details about its appearance remain elusive in most gardening resources.

Where Does It Grow?

This species has been documented in New York state, though its full range may extend beyond what’s currently recorded. As a non-native plant that has established itself in the wild, shady woodsorrel represents one of those plants that has found a way to make itself at home in North American landscapes.

Should You Grow Shady Woodsorrel?

Here’s where things get a bit tricky. While shady woodsorrel isn’t listed as invasive or noxious, the limited information available about this species makes it difficult to recommend for home gardens. Without clear data on its growth habits, care requirements, or potential impact on local ecosystems, it’s hard to know what you’re getting into.

Native Alternatives to Consider

If you’re drawn to the idea of growing wood sorrel-type plants, consider these native alternatives that offer similar charm with well-documented benefits:

  • Yellow Wood Sorrel (Oxalis stricta) – A native species with bright yellow flowers
  • Wild Ginger – For shady spots with heart-shaped leaves
  • Wild Columbine – Native perennial with delicate, colorful flowers
  • Coral Bells – Native heucheras with attractive foliage and flower spikes

The Bottom Line

Shady woodsorrel remains something of a gardening mystery. While it’s not flagged as problematic, the lack of readily available information about its growing requirements, appearance, and ecological impact makes it a less-than-ideal choice for most home gardeners. If you’re set on exploring lesser-known plants, make sure you source them responsibly and keep an eye on their behavior in your garden.

For most gardeners, sticking with well-documented native plants will give you the best chance of success while supporting local wildlife and ecosystems. Sometimes the most mysterious plants are best left to botanical researchers rather than brought into our backyard gardens!

Shady Woodsorrel

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

Geraniales

Family

Oxalidaceae R. Br. - Wood-Sorrel family

Genus

Oxalis L. - woodsorrel

Species

Oxalis exilis A. Cunn. - shady woodsorrel

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