What Is the Sleeping Beauty Flower? | A Name Three Plants Share

Ask three gardeners what the Sleeping Beauty flower is, and you might get three different answers. That is because the name isn’t a single species. In U.S. plant databases, it most often refers to creeping woodsorrel, a low-growing weed with small yellow blossoms. In the nursery trade, it’s a label applied to a daylily cultivar and even a flowering cactus. The key to knowing which one you have is context, and the scientific name is the only reliable clue.

Why the Name “Sleeping Beauty” Is So Confusing

The name comes from a simple quirk of plant behavior. For creeping woodsorrel, the flowers fold shut when they are not in direct sun, a habit that gave the plant its fairy-tale nickname. That same habit shows up in several related species, so the common name stuck to more than one of them.

Horticulturists call this a case of overlapping common names. One name, multiple plants. The Montana Field Guide lists creeping woodsorrel as “Sleeping Beauty” and “procumbent yellow sorrel,” non-native in that state. When you add unrelated ornamentals that share the label, you get real confusion.

Three Plants Called Sleeping Beauty

If you are looking at a weedy groundcover with shamrock-like leaves and small yellow flowers, you almost certainly have creeping woodsorrel, *Oxalis corniculata*. It is a small, creeping herbaceous plant native to southeastern Asia that grows happily in moist climates. The flowers close without direct sun, which is the “sleeping” behavior behind the name.

Garden Perennials and the Daylily Cultivar

In the ornamental trade, the name shifts. The Royal Horticultural Society lists *Hemerocallis* ‘Sleeping Beauty’ as a cultivated daylily, an evergreen or herbaceous perennial with narrow, strap-shaped leaves and funnel-shaped flowers that bloom in late spring or early summer. If you bought a “Sleeping Beauty” plant with grass-like foliage and large blooms, this is likely it.

The Cactus Cultivar

Even cactus growers use the name. That is a completely different plant from the oxalis weed, with completely different care needs.

How To Tell Which Sleeping Beauty You Have

The fastest way to identify your plant is to look at the flower color and the growth habit. Yellow, tiny, low-growing flowers on a creeping weed mean *Oxalis corniculata*. Large, lily-like blooms on tall stalks over strap-shaped leaves mean the daylily. A barrel or column cactus with big amber blooms means the *Echinopsis* cultivar.

Flora of North America also lists *Oxalis montana* as “Sleeping-beauty, American or white wood-sorrel,” so white flowers point to that species. If the plant is a houseplant with deep purple triangular leaves, that is *Oxalis triangularis*, the common shamrock, a separate plant entirely.

The takeaway is simple: always pair the common name with the scientific one. Care instructions for a cactus do nothing for a daylily, and weed-control advice for creeping woodsorrel will not help a potted shamrock. If you are shopping for a Sleeping Beauty plant for your garden, knowing the exact species makes the difference between a thriving perennial and a surprise weed.