Woolly Fingergrass: A Lesser-Known Grass with an Identity Question
If you’ve stumbled across the name woolly fingergrass (Digitaria eriantha pentzii) in your gardening research, you might be scratching your head – and for good reason. This particular plant sits in a somewhat mysterious corner of the grass world, where botanical names get complex and information becomes surprisingly scarce.
What Exactly Is Woolly Fingergrass?
Woolly fingergrass belongs to the vast family of true grasses (Poaceae), which means it’s related to everything from your lawn grass to prairie giants. As a subspecies of Digitaria eriantha, it’s part of the fingergrass genus – plants that get their name from their distinctive seed heads that spread out like fingers from a hand.
This grass has gone by several botanical names over the years, including Digitaria decumbens Stent and Digitaria pentzii Stent, which tells us that even botanists have had some difficulty pinning down exactly what to call it.
The Geographic Mystery
Here’s where things get tricky: the specific geographic distribution and native status of Digitaria eriantha pentzii isn’t clearly documented in readily available sources. This lack of clear information makes it challenging to determine where this grass naturally belongs and whether it might be appropriate for your garden.
Should You Plant Woolly Fingergrass?
Given the limited information available about this specific subspecies, including its:
- Unknown native status and geographic range
- Unclear invasive potential
- Uncertain growing requirements
- Undocumented wildlife and pollinator benefits
It’s difficult to make a strong recommendation either way. The lack of detailed information suggests this isn’t a commonly cultivated or well-studied plant in the gardening world.
A Better Approach: Choose Well-Documented Native Grasses
Rather than gambling on a plant with uncertain characteristics, consider these benefits of choosing well-documented native grasses for your landscape:
- Clear information about growing requirements
- Known wildlife and pollinator benefits
- Predictable growth habits and mature size
- Local adaptation and climate resilience
- No risk of unintended invasive behavior
Making an Informed Choice
If you’re specifically interested in fingergrass species or similar ornamental grasses, your best bet is to:
- Contact your local native plant society for recommendations
- Consult with your county extension office
- Visit native plant nurseries in your area
- Research grasses that are definitively native to your region
The world of native grasses offers countless beautiful, beneficial, and well-documented options that can provide the aesthetic appeal and ecological benefits you’re looking for – without the uncertainty that comes with lesser-known subspecies like woolly fingergrass.
Sometimes in gardening, the most responsible choice is to say I don’t know enough about this plant to recommend it – and that’s exactly where we land with Digitaria eriantha pentzii. Your garden (and local ecosystem) will thank you for choosing plants with clear, positive track records instead.