Eggers’ Crabgrass: A Mysterious Native Grass of the Virgin Islands
Meet Eggers’ crabgrass (Digitaria eggersii), one of the Caribbean’s best-kept botanical secrets. This perennial grass species is a true local celebrity in the U.S. Virgin Islands—and pretty much nowhere else! If you’re looking for a plant that’s about as exclusive as it gets, you’ve found your match.
What Is Eggers’ Crabgrass?
Eggers’ crabgrass belongs to the grass family and goes by the scientific name Digitaria eggersii. You might also see it listed under its former names Trichachne eggersii or Valota eggersii in older botanical references. Unlike its weedy cousins that pop up uninvited in lawns everywhere, this particular crabgrass is a perennial native that calls the Virgin Islands home.
As a graminoid, this plant falls into that wonderful category of grass-like plants that includes true grasses, sedges, and rushes. Think of it as part of nature’s green carpet crew, though this particular member keeps a very low profile.
Where Does It Grow?
Here’s where things get interesting (and a bit limiting): Eggers’ crabgrass is native exclusively to the U.S. Virgin Islands. That’s it—no mainland United States, no other Caribbean islands, just this tiny slice of paradise in the Caribbean Sea.
- Species observed
- No observations
Should You Grow Eggers’ Crabgrass?
Well, that’s a tricky question! While this native grass would theoretically be a fantastic choice for Virgin Islands gardeners looking to support local ecosystems, there’s a catch—practically everything about growing this plant remains a mystery.
We don’t know:
- What growing conditions it prefers
- How big it gets or what it looks like
- Whether it’s rare or common in its native habitat
- What kind of wildlife benefits it provides
- How to propagate or care for it
The Challenge of Rare Native Plants
Eggers’ crabgrass represents a fascinating challenge in native gardening: what do you do with a plant that’s clearly special (being endemic to such a small area) but about which we know almost nothing? This situation isn’t uncommon with island endemics, where small populations and limited research mean many native species remain botanical mysteries.
If you’re a Virgin Islands gardener interested in this species, your best bet would be to:
- Connect with local botanical organizations or the University of the Virgin Islands
- Look for it in its natural habitat to observe its growing conditions
- Consider participating in citizen science projects that document local flora
Supporting Virgin Islands Native Plants
While Eggers’ crabgrass might not be ready for your garden center wishlist, there are plenty of other Virgin Islands natives that are better documented and available for cultivation. Supporting native plant gardening in the Caribbean helps preserve these unique island ecosystems and the specialized species that call them home.
Sometimes the most valuable plants are the ones that keep their secrets. Eggers’ crabgrass reminds us that there’s still so much to discover about the natural world, even in our own backyards—or in this case, our own tropical paradise.