North America Non-native Plant

Taeniatherum Caputmedusae Crinitum

Botanical name: Taeniatherum caputmedusae crinitum

USDA symbol: TACAC

Habit: grass

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

Synonyms: Elymus crinitus Schreb. (ELCR6)   

Taeniatherum caputmedusae crinitum: A Mysterious Grass with Uncertain Identity If you’ve stumbled across the name Taeniatherum caputmedusae crinitum in your plant research, you’re not alone in feeling a bit puzzled. This particular botanical name presents quite the mystery in the world of grasses, and there’s a good reason why you ...

Taeniatherum caputmedusae crinitum: A Mysterious Grass with Uncertain Identity

If you’ve stumbled across the name Taeniatherum caputmedusae crinitum in your plant research, you’re not alone in feeling a bit puzzled. This particular botanical name presents quite the mystery in the world of grasses, and there’s a good reason why you might be having trouble finding solid information about it.

What’s in a Name? The Taxonomic Puzzle

Taeniatherum caputmedusae crinitum belongs to the grass family and is classified as a graminoid – that’s botanist-speak for grass or grass-like plants. While we know it has a synonym of Elymus crinitus Schreb., the specific identity and characteristics of this plant remain unclear in current botanical literature.

The genus Taeniatherum is real enough, but this particular species designation appears to be either extremely obscure or potentially misidentified. This isn’t uncommon in the plant world, where taxonomic names can sometimes become muddled through historical classification changes or regional variations in naming.

The Challenge for Gardeners

Here’s where things get tricky for anyone hoping to add this grass to their garden: without clear identification and reliable information about its characteristics, it’s nearly impossible to provide meaningful growing advice. We don’t have confirmed details about:

  • Its native range or geographical distribution
  • Whether it’s invasive or beneficial
  • Its preferred growing conditions
  • Its wildlife or pollinator benefits
  • Appropriate USDA hardiness zones

A Word of Caution

If you’re considering planting something labeled as Taeniatherum caputmedusae crinitum, we’d recommend proceeding with extreme caution. Without clear identification, you could inadvertently introduce a problematic species to your landscape. Some members of related genera can be quite aggressive spreaders.

Better Alternatives for Your Garden

Instead of wrestling with this botanical mystery, consider exploring well-documented native grasses that are proven performers in home landscapes. Your local native plant society or extension office can point you toward grasses that will thrive in your specific region while supporting local wildlife.

The Bottom Line

Sometimes in gardening, as in life, the most honest answer is we’re not sure. Taeniatherum caputmedusae crinitum falls into that category of plants where more research is needed before we can confidently recommend it for cultivation. When in doubt, it’s always better to stick with plants that have clear identities and well-understood growing requirements.

If you’re passionate about grasses and have encountered this species name in your research, consider reaching out to botanical experts or herbarium specialists who might be able to help clarify its true identity and characteristics.

Taeniatherum Caputmedusae Crinitum

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

Taeniatherum Nevski - medusahead

Species

Taeniatherum caput-medusae (L.) Nevski - medusahead

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