Non-native Plants

Eragrostis Sarmentosa

Eragrostis sarmentosa

USDA symbol: ERSA20

If you’ve stumbled upon the name Eragrostis sarmentosa in your native plant research, you’re not alone in wondering what exactly this grass is all about. This particular member of the lovegrass family is something of a botanical mystery, with surprisingly little information available even in scientific databases. Eragrostis sarmentosa belongs ...

Eragrostis sarmentosa: The Elusive Lovegrass

If you’ve stumbled upon the name Eragrostis sarmentosa in your native plant research, you’re not alone in wondering what exactly this grass is all about. This particular member of the lovegrass family is something of a botanical mystery, with surprisingly little information available even in scientific databases.

What We Know About This Grass

Eragrostis sarmentosa belongs to the Poaceae family, making it a true grass related to the more familiar lovegrasses. Like its cousins in the Eragrostis genus, it would typically be a bunch grass with delicate, airy seed heads that dance in the breeze. However, beyond this basic classification, reliable details about this specific species are remarkably scarce.

The Information Gap

Here’s where things get interesting (and a bit frustrating for plant enthusiasts): comprehensive information about Eragrostis sarmentosa’s native range, growing requirements, and garden characteristics simply isn’t readily available. This could mean several things:

  • It may be a regional endemic with very limited distribution
  • The name might be outdated or synonymous with a better-known species
  • It could be so rare that it hasn’t been extensively studied or cultivated

Should You Try to Grow It?

Given the lack of available information about this species’ native status, growing requirements, and availability, it’s difficult to recommend Eragrostis sarmentosa for home gardens. Without knowing its native range or cultivation needs, you’d be gardening in the dark.

Better Alternatives: Well-Documented Lovegrasses

Instead of searching for this elusive species, consider these well-known native lovegrasses that offer proven garden performance:

  • Purple Lovegrass (Eragrostis spectabilis) – A beautiful native with purple-tinged seed heads
  • Sand Lovegrass (Eragrostis trichodes) – Excellent for sandy soils and prairie gardens
  • Little Lovegrass (Eragrostis minor) – Though not native, it’s naturalized and non-invasive in many areas

The Takeaway

Sometimes in the plant world, we encounter species that remain tantalizingly out of reach for home gardeners. Eragrostis sarmentosa appears to be one of these botanical enigmas. Rather than chase after poorly documented species, focus your energy on the many wonderful, well-understood native grasses that can provide beauty, wildlife habitat, and reliable performance in your landscape.

If you’re specifically interested in this species for research purposes, consider reaching out to botanical institutions or herbaria that might have more specialized knowledge about rare or regional grass species.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae Barnhart - Grass family
Genus: Eragrostis von Wolf - lovegrass

Species: Eragrostis sarmentosa (Thunb.) Trin.

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