Non-native Plants

Nakedstem Dewflower

Murdannia nudiflora

USDA symbol: MUNU

annual forb

Hawaii: non-native, naturalized
Lower 48 states: non-native, naturalized
Pacific Basin excluding Hawaii: native in some areas, naturalized in others
Puerto Rico: non-native, naturalized

If you’re looking for a low-maintenance ground cover that thrives in those tricky wet spots in your garden, you might want to consider the nakedstem dewflower (Murdannia nudiflora). This small but charming plant has quietly made itself at home across much of the southeastern United States, offering gardeners an interesting ...

Nakedstem Dewflower: A Delicate Ground Cover for Moist Gardens

If you’re looking for a low-maintenance ground cover that thrives in those tricky wet spots in your garden, you might want to consider the nakedstem dewflower (Murdannia nudiflora). This small but charming plant has quietly made itself at home across much of the southeastern United States, offering gardeners an interesting option for challenging growing conditions.

Getting to Know Nakedstem Dewflower

Nakedstem dewflower is exactly what it sounds like – a delicate flowering plant with slender, relatively bare stems that seem to emerge directly from the ground. As a member of the dayflower family, it shares some characteristics with its more famous cousin, the common dayflower, but maintains its own unique charm.

This plant can behave as either an annual or perennial depending on your climate, and it’s classified as a forb – essentially a soft-stemmed flowering plant without woody tissue. Don’t let its delicate appearance fool you, though. Once established in the right conditions, it can spread readily to form attractive colonies.

Where You’ll Find It Growing

Originally native to tropical regions of Asia and Africa, nakedstem dewflower has established populations across the southeastern United States. You can currently find it growing in Alabama, Arkansas, Florida, Georgia, Hawaii, Louisiana, Mississippi, North Carolina, South Carolina, and Texas, as well as in Puerto Rico, Guam, and Palau.

  • Species observed
  • No observations

While it’s considered a non-native species in these areas, it has successfully naturalized and reproduces on its own without human intervention.

What Makes It Special in the Garden

The real appeal of nakedstem dewflower lies in its adaptability to wet conditions. This plant absolutely loves moisture and can handle everything from consistently damp soil to periodic flooding. Its small, delicate blue to purple flowers add a subtle splash of color, while its low-growing, spreading habit makes it useful as a living carpet in challenging areas.

Here’s what makes it garden-worthy:

  • Thrives in wet, boggy conditions where other plants struggle
  • Low-maintenance once established
  • Attractive small flowers that appeal to pollinators
  • Forms dense mats that can help prevent soil erosion
  • Tolerates a range of light conditions from partial shade to full sun

Growing Conditions and Care

If you’re thinking about adding nakedstem dewflower to your garden, you’ll have the best success in USDA hardiness zones 8-11. The key to happy plants is moisture – lots of it. This species performs best in:

  • Consistently moist to wet soils
  • Areas with poor drainage where other plants might rot
  • Pond margins, rain gardens, or low-lying areas
  • Partial shade to full sun locations

The plant’s wetland status varies by region, but it’s generally classified as either facultative (equally happy in wet or dry conditions) or facultative wetland (prefers wet but tolerates drier spots). This flexibility makes it particularly valuable for transitional areas in your landscape.

A Word of Caution and Alternatives

While nakedstem dewflower isn’t currently listed as invasive or noxious, it’s worth remembering that it is a non-native species. If you’re passionate about supporting local ecosystems, you might want to consider native alternatives that provide similar benefits.

Some excellent native options for wet areas include:

  • Blue flag iris (Iris virginica) for dramatic height and color
  • Swamp milkweed (Asclepias incarnata) for pollinator support
  • Cardinal flower (Lobelia cardinalis) for stunning red blooms
  • Native sedges for textural ground cover

The Bottom Line

Nakedstem dewflower can be a practical solution for those persistently wet areas where you’ve struggled to establish other plants. Its low-maintenance nature and ability to form attractive colonies make it worth considering, especially if you’re dealing with challenging moisture conditions. Just remember to weigh the benefits against your personal commitment to native plant gardening, and always check local regulations before introducing any new species to your landscape.

Whether you choose this adaptable ground cover or opt for native alternatives, the key is selecting plants that will thrive in your specific conditions while supporting the broader garden ecosystem you’re trying to create.

Murdannia nudiflora is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Murdannia nudiflora is also known as:

Aneilema nudicaule | USDA symbol: ANNU8
Aneilema nudiflorum | USDA symbol: ANNU9
Commelina nudiflora | USDA symbol: CONU7

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Atlantic and Gulf Coastal Plain (AL, AR, DC, DE, FL, GA, IL, KY, LA, MD, MS, MO, NC, NJ, OK, PA, SC, TN, TX, VA)

Facultative

Caribbean (PR, VI)

Facultative Wetland

Eastern Mountains and Piedmont (AL, AR, DC, DE, GA, IL, IN, KS, KY, MD, MO, NC, NJ, NY, OH, OK, PA, SC, TN, VA, WV)

Facultative

Great Plains (CO, KS, MN, MT, NE, NM, ND, OK, SD, TX, WY)

Facultative Wetland

Hawaii ()

Facultative Upland

Midwest (IL, IN, IA, KS, KY, MI, MN, MO, NE, ND, OK, OH, SD, WI)

Facultative Wetland
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Commelinales
Family: Commelinaceae Mirb. - Spiderwort family
Genus: Murdannia Royle - murdannia

Species: Murdannia nudiflora (L.) Brenan - nakedstem dewflower

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