North America Non-native Plant

Stipa Holosericea

Botanical name: Stipa holosericea

USDA symbol: STHO4

Habit: grass

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

Stipa holosericea: A Mysterious Native Grass If you’ve stumbled across the name Stipa holosericea in your native plant research, you’re not alone in wondering what exactly this grass is all about. This particular species represents one of those botanical mysteries that even seasoned native plant enthusiasts might scratch their heads ...

Stipa holosericea: A Mysterious Native Grass

If you’ve stumbled across the name Stipa holosericea in your native plant research, you’re not alone in wondering what exactly this grass is all about. This particular species represents one of those botanical mysteries that even seasoned native plant enthusiasts might scratch their heads over.

What We Know About This Grass

Stipa holosericea belongs to the Poaceae family, making it a true grass rather than a grass-like sedge or rush. The genus Stipa includes what are commonly known as feather grasses or needle grasses, many of which are prized for their ornamental plumes and drought tolerance. However, this particular species has very limited documentation in readily available botanical resources.

The Challenge of Identification

Here’s where things get a bit tricky for us gardeners. Unlike its more famous cousins in the Stipa genus, S. holosericea doesn’t appear in most standard native plant guides or nursery catalogs. This could mean several things:

  • It might be an extremely rare or regionally limited species
  • The name may have been reclassified or updated in recent botanical revisions
  • It could be a species with very specific habitat requirements that make it unsuitable for typical garden cultivation

What This Means for Gardeners

If you’re specifically looking for Stipa holosericea for your native garden, you might want to double-check your plant lists or sources. It’s possible there’s been a mix-up with a more commonly available Stipa species, or you might need to consult with specialized native plant societies or botanical experts in your area.

Better-Known Stipa Alternatives

While we can’t provide specific growing information for S. holosericea, there are several other Stipa species that might meet your native gardening needs:

  • Stipa spartea (Porcupine grass) – dramatic seed heads and prairie authenticity
  • Stipa comata (Needle and thread grass) – delicate, feathery appearance
  • Stipa pulchra (Purple needlegrass) – California’s state grass

Moving Forward

If you’re determined to learn more about Stipa holosericea specifically, your best bet is to contact local botanical gardens, native plant societies, or university extension services in your area. They may have access to specialized databases or regional knowledge that isn’t widely available online.

For most gardeners, focusing on well-documented native grasses that are readily available and have proven garden performance might be the more practical approach. After all, the goal is creating beautiful, functional native landscapes that support local ecosystems – and there are plenty of amazing native grasses that can help you achieve that goal.

Stipa Holosericea

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

Stipa L.

Species

Stipa holosericea Trin. & Rupr.

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