North America Native Plant

Mosquito Crowngrass

Botanical name: Paspalum dispar

USDA symbol: PADI15

Life cycle: perennial

Habit: grass

Native status: Native to Puerto Rico  

Mosquito Crowngrass: A Lesser-Known Native Treasure from Puerto Rico Meet mosquito crowngrass (Paspalum dispar), a perennial grass that’s as intriguing as its name suggests. While this native Puerto Rican species might not be the showiest plant in your garden, it represents an important piece of the island’s natural heritage and ...

Mosquito Crowngrass: A Lesser-Known Native Treasure from Puerto Rico

Meet mosquito crowngrass (Paspalum dispar), a perennial grass that’s as intriguing as its name suggests. While this native Puerto Rican species might not be the showiest plant in your garden, it represents an important piece of the island’s natural heritage and could be a valuable addition for gardeners seeking authentic native plants.

What Makes Mosquito Crowngrass Special?

Mosquito crowngrass is a true native of Puerto Rico, meaning it evolved naturally on the island and plays an integral role in local ecosystems. As a member of the grass family, this perennial species has adapted perfectly to Puerto Rican conditions over thousands of years.

This grass grows exclusively in Puerto Rico, making it a unique choice for gardeners who want to support truly local flora. Its limited distribution also means you’re helping preserve a piece of natural heritage when you choose to grow it.

Why Consider Mosquito Crowngrass for Your Garden?

While detailed growing information for this specific species is limited, there are compelling reasons to consider mosquito crowngrass if you’re gardening in Puerto Rico:

  • Native authenticity: Supporting plants that naturally belong in your area
  • Low maintenance potential: Native grasses typically require less water and care once established
  • Ecosystem support: Native plants provide food and habitat for local wildlife
  • Conservation value: Growing native species helps preserve local biodiversity

Growing Mosquito Crowngrass Successfully

Since mosquito crowngrass is native to Puerto Rico, it’s naturally adapted to the island’s tropical climate. While specific growing requirements for this species aren’t well-documented, you can apply general principles for native Puerto Rican grasses:

  • Plant in areas that mimic its natural habitat
  • Provide good drainage, as most grasses prefer well-draining soil
  • Allow the plant to establish naturally without excessive fertilization
  • Water during establishment, then reduce as the plant matures

A Word of Caution: Limited Availability

One challenge you’ll face with mosquito crowngrass is finding it. This species isn’t commonly available in nurseries, and its limited distribution means you’ll need to source it responsibly. If you’re interested in growing this grass, consider:

  • Contacting local native plant societies
  • Reaching out to botanical gardens or conservation organizations
  • Ensuring any plants you obtain are ethically sourced

The Bottom Line

Mosquito crowngrass represents the fascinating diversity of Puerto Rico’s native flora. While it may not be the easiest plant to find or grow, it offers gardeners a chance to connect with their local ecosystem in a meaningful way. If you’re passionate about native gardening and conservation, this little-known grass could be a rewarding addition to your landscape.

Remember, every native plant we grow helps support the complex web of life that makes our natural areas so special. Sometimes the most valuable plants aren’t the flashiest ones – they’re the quiet contributors that keep ecosystems healthy and thriving.

Mosquito Crowngrass

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 dispar Chase - mosquito crowngrass

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