North America Non-native Plant

Paspalum Hydrophilum

Botanical name: Paspalum hydrophilum

USDA symbol: PAHY15

Life cycle: perennial

Habit: grass

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

Paspalum hydrophilum: The Mysterious Native Grass If you’ve stumbled across the name Paspalum hydrophilum in your plant research, you’re likely scratching your head wondering what exactly this grass is all about. Don’t worry – you’re not alone! This particular member of the Paspalum genus is something of an enigma in ...

Paspalum hydrophilum: The Mysterious Native Grass

If you’ve stumbled across the name Paspalum hydrophilum in your plant research, you’re likely scratching your head wondering what exactly this grass is all about. Don’t worry – you’re not alone! This particular member of the Paspalum genus is something of an enigma in the gardening world.

What We Know (And What We Don’t)

Paspalum hydrophilum is a perennial grass that belongs to the large and diverse Paspalum genus, which includes over 300 species of grasses found throughout warmer regions of the world. Unfortunately, detailed information about this specific species is remarkably scarce in readily available horticultural and botanical literature.

What we can say with certainty is that it’s a graminoid – that’s botanist-speak for a grass or grass-like plant. Beyond that basic classification as a perennial grass, the specifics about its appearance, growing requirements, and native range remain largely undocumented in accessible sources.

The Challenge of Obscure Species

The lack of readily available information about Paspalum hydrophilum presents a real challenge for gardeners. Without knowing its native status, growth habits, or environmental requirements, it’s difficult to make informed decisions about whether and how to grow it.

This situation isn’t uncommon with lesser-known plant species. Some possibilities for the limited information include:

  • It may be a very geographically restricted species
  • The name might be outdated or represent a taxonomic synonym
  • It could be primarily of interest to botanical researchers rather than gardeners
  • Documentation may exist primarily in specialized scientific literature

A Cautious Approach

Given the uncertainty surrounding Paspalum hydrophilum, we’d recommend extreme caution before attempting to grow or introduce this species. Without knowing its native range, invasive potential, or ecological impact, planting unknown species can sometimes lead to unintended consequences.

If you’re specifically interested in this plant for research purposes or have encountered it in a specialized botanical context, we’d suggest:

  • Consulting with local botanical institutions or universities
  • Checking with regional native plant societies
  • Reviewing specialized taxonomic databases
  • Contacting professional botanists familiar with Paspalum species

Better-Known Alternatives

If you’re drawn to native grasses for your landscape, consider exploring well-documented Paspalum species or other native grasses in your region. Many native plant nurseries and extension services can provide detailed information about locally appropriate grass species that will support local ecosystems and provide known benefits to wildlife.

Popular native grass alternatives often include species with documented wildlife benefits, known growing requirements, and established roles in sustainable landscaping practices.

The Bottom Line

While Paspalum hydrophilum may indeed be a fascinating plant, the lack of available information makes it unsuitable for general gardening recommendations. In the world of native gardening, it’s always better to choose well-documented species with known benefits and established growing guidelines.

If you’re passionate about rare or unusual plants, consider connecting with botanical researchers or specialized plant societies who might have more detailed knowledge about this mysterious grass. Until more information becomes available, stick with proven native species that will reliably support your local ecosystem.

Paspalum Hydrophilum

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 hydrophilum Henr.

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