North America Non-native Plant

Paspalum Clandestinum

Botanical name: Paspalum clandestinum

USDA symbol: PACL11

Habit: grass

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

Paspalum clandestinum: The Mysterious Grass That’s Hard to Pin Down If you’ve stumbled across the name Paspalum clandestinum in your gardening research, you might be scratching your head wondering what exactly this plant is all about. Don’t worry – you’re not alone! This particular member of the Paspalum genus is ...

Paspalum clandestinum: The Mysterious Grass That’s Hard to Pin Down

If you’ve stumbled across the name Paspalum clandestinum in your gardening research, you might be scratching your head wondering what exactly this plant is all about. Don’t worry – you’re not alone! This particular member of the Paspalum genus is something of a botanical mystery, with very little documented information available about its characteristics, native range, or garden potential.

What We Know About This Elusive Grass

Paspalum clandestinum belongs to the graminoid group, which means it’s a grass or grass-like plant in the same family as familiar lawn grasses, sedges, and rushes. Like other members of the Paspalum genus, it’s likely a warm-season grass with the typical characteristics you’d expect from this plant family.

The genus Paspalum includes over 400 species worldwide, ranging from useful forage grasses to problematic weeds. However, P. clandestinum appears to be one of the lesser-known members of this diverse group.

The Challenge of Limited Information

Here’s where things get tricky for gardeners and plant enthusiasts. Unlike well-documented native plants that come with clear growing guides and ecological information, Paspalum clandestinum lacks readily available details about:

  • Its native geographic range
  • Preferred growing conditions
  • Wildlife and pollinator benefits
  • Invasive or beneficial status
  • Specific care requirements

This lack of information could indicate that the species is extremely localized, rarely studied, or possibly represents a taxonomic uncertainty within the scientific community.

A Word of Caution for Gardeners

When encountering any plant with limited documentation, especially grasses that can sometimes become aggressive spreaders, it’s wise to proceed with caution. Some members of the Paspalum genus are known to be invasive in certain regions, while others are valuable native plants.

Before considering Paspalum clandestinum for your garden, we’d recommend:

  • Consulting with local native plant societies or extension services
  • Verifying the plant’s identity with botanical experts
  • Researching any local regulations regarding non-native grasses
  • Considering well-documented native grass alternatives instead

Better Alternatives for Your Garden

Rather than taking a chance on a poorly understood species, why not explore some well-documented native grasses that offer proven benefits? Depending on your region, you might consider native bunch grasses, sedges, or other graminoids that provide clear ecological value, established care guidelines, and known wildlife benefits.

Your local native plant nursery can help you identify beautiful, regionally appropriate grass species that will thrive in your specific conditions while supporting local wildlife and pollinators.

The Bottom Line

While Paspalum clandestinum may sound intriguing, the lack of available information makes it difficult to recommend for home gardeners. Sometimes the most responsible choice is to stick with well-understood native plants that come with clear benefits and growing instructions. Your garden – and local ecosystem – will thank you for choosing plants with proven track records!

Paspalum Clandestinum

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Paspalum L. - crowngrass

Species

Paspalum clandestinum Hochst. [excluded]

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