North America Non-native Plant

Paspalum Wettsteinii

Botanical name: Paspalum wettsteinii

USDA symbol: PAWE7

Habit: grass

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

Paspalum wettsteinii: The Mystery Grass Worth Learning About If you’ve stumbled across the name Paspalum wettsteinii in your plant research, you’re not alone in feeling a bit puzzled. This graminoid (fancy term for grass-like plant) is one of those botanical mysteries that keeps plant enthusiasts scratching their heads – and ...

Paspalum wettsteinii: The Mystery Grass Worth Learning About

If you’ve stumbled across the name Paspalum wettsteinii in your plant research, you’re not alone in feeling a bit puzzled. This graminoid (fancy term for grass-like plant) is one of those botanical mysteries that keeps plant enthusiasts scratching their heads – and for good reason!

What We Know (And What We Don’t)

Paspalum wettsteinii belongs to the vast Paspalum genus, which includes hundreds of grass species found around the world. As a graminoid, it shares company with other grass-like plants including true grasses, sedges, and rushes. However, here’s where things get interesting (and frustrating): reliable information about this specific species is remarkably scarce.

Unlike its well-documented cousins in the Paspalum family, P. wettsteinii seems to fly under the radar in most botanical databases and gardening resources. This could mean it’s either a regional specialty, a recently described species, or possibly even a synonym for another more commonly recognized Paspalum species.

The Information Gap Challenge

When it comes to the practical details gardeners usually want to know – like where it’s native to, what conditions it prefers, or how tall it grows – we’re working with limited data. The geographical distribution remains unclear, and without knowing its native range, it’s difficult to provide specific growing recommendations or assess its ecological impact.

Should You Plant It?

Here’s the tricky part: without clear information about its native status, invasive potential, or specific growing requirements, it’s hard to give a definitive recommendation about planting Paspalum wettsteinii. If you’re considering this species, here are some important considerations:

  • Consult local botanical experts or extension services who might have regional knowledge
  • Verify the plant identification with a qualified botanist
  • Consider well-documented native grass alternatives for your area
  • If you do obtain this species, observe it carefully for any aggressive spreading behavior

Better Safe Than Sorry: Native Alternatives

Given the uncertainty surrounding Paspalum wettsteinii, you might want to consider other native grass species that are well-documented and proven garden performers. Many Paspalum species are excellent choices for naturalistic gardens, wildlife habitat, and erosion control – but choosing ones with clear provenance and growing information will serve you better in the long run.

The Bottom Line

Paspalum wettsteinii represents one of those fascinating gaps in our botanical knowledge. While the mystery surrounding this species might intrigue plant collectors and botanical enthusiasts, practical gardeners might want to stick with better-documented alternatives until more information becomes available.

If you do encounter this species or have experience growing it, consider contributing to citizen science projects or contacting botanical institutions – your observations could help fill in the knowledge gaps for future gardeners!

Paspalum Wettsteinii

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 wettsteinii Hack.

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