North America Native Plant

Wireleaf Dropseed

Botanical name: Sporobolus teretifolius

USDA symbol: SPTE4

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Wireleaf Dropseed: A Rare Gem for Wetland Gardens Meet wireleaf dropseed (Sporobolus teretifolius), a delicate native grass that’s as elusive as it is beautiful. This thread-leaved perennial might not be the showiest plant in your garden, but it holds a special place in the hearts of native plant enthusiasts and ...

Rare plant alert!

Region: Alabama

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Region: Alabama

Wireleaf Dropseed: A Rare Gem for Wetland Gardens

Meet wireleaf dropseed (Sporobolus teretifolius), a delicate native grass that’s as elusive as it is beautiful. This thread-leaved perennial might not be the showiest plant in your garden, but it holds a special place in the hearts of native plant enthusiasts and conservationists alike.

What Makes Wireleaf Dropseed Special?

Wireleaf dropseed is a fine-textured graminoid that lives up to its common name with incredibly narrow, almost wire-like leaves. This perennial grass creates a soft, delicate texture in the landscape that contrasts beautifully with broader-leaved wetland plants. While it may not produce flashy flowers, its subtle seed heads add gentle movement and interest to naturalistic plantings.

Where Does It Call Home?

This southeastern native has a relatively limited range, naturally occurring in Alabama, Florida, Georgia, North Carolina, and South Carolina. You’ll find it thriving in the coastal plains and wetland areas of these states, where it has adapted to specific moisture and soil conditions.

A Word of Caution: Rarity Matters

Here’s something important every gardener should know: wireleaf dropseed is considered imperiled. With a global conservation status of S2, this species is extremely rare, typically found in only 6 to 20 locations with few remaining individuals. In Alabama, it’s even rarer with an S1 status. If you’re considering adding this grass to your garden, please ensure you source it responsibly from reputable native plant nurseries that propagate rather than wild-collect their plants.

Growing Conditions: It’s All About the Water

Wireleaf dropseed is what botanists call a facultative wetland plant, meaning it usually grows in wetlands but can occasionally tolerate drier conditions. Here’s what this grass needs to thrive:

  • Consistently moist to wet soil conditions
  • Full sun to partial shade exposure
  • USDA hardiness zones 8-10
  • Tolerance for periodic flooding
  • Natural or clay-based soils typical of wetland areas

Perfect Garden Situations

This isn’t a grass for your typical suburban lawn or dry border. Wireleaf dropseed shines in specialized situations:

  • Rain gardens and bioswales
  • Wetland restoration projects
  • Native plant gardens with consistent moisture
  • Pond or stream edges
  • Conservation-focused landscapes

Wildlife and Ecological Benefits

While wireleaf dropseed is wind-pollinated and doesn’t directly attract pollinators like flowering plants do, it still plays important ecological roles. Native grasses provide habitat structure for small wildlife, nesting material for birds, and help stabilize soil in wetland environments. As part of a diverse native plant community, it contributes to the overall health of wetland ecosystems.

Care and Maintenance

Once established in the right conditions, wireleaf dropseed is refreshingly low-maintenance. The key is providing consistent moisture – if you can meet its water needs, this native grass will reward you with minimal fuss. Avoid fertilizers, as native wetland plants are adapted to naturally occurring nutrient levels.

Should You Plant Wireleaf Dropseed?

The answer depends on your specific situation. If you have a wetland garden, rain garden, or consistently moist area that needs a delicate native grass, and you can source the plant responsibly, wireleaf dropseed could be a wonderful addition. However, given its rarity, many gardeners might consider supporting conservation efforts through specialized native plant organizations rather than growing it in home landscapes.

For those with appropriate growing conditions who want to help conserve this species, wireleaf dropseed offers a chance to grow something truly special – a living piece of our southeastern wetland heritage that needs our protection and care.

Wireleaf Dropseed

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

Sporobolus R. Br. - dropseed

Species

Sporobolus teretifolius Harper - wireleaf dropseed

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