Friday’s seeds & plant portrait: Eriophorum virginicum

I am very happy to notice that more people are willing to grow species listed in the Grasses & related genera category, which contains various grasses per se and sedges, most of them unrepresented in our gardens for no good reason.

Eriophorum virginicum, Tawny cottongrass, Rusty cottongrass, or Hare’s Tail cottongrass has been added, mostly by mistake, from my desire to use a few seedheads in a vase.
The whitish fluffy seeds-heads, contrasting with the first fall colors of surrounding landscapes are always very attractive. Of course, I should have known better…. they disintegrate easily at maturity.

So, those with possibilities, meaning a wet area (which doesn’t have to be very large) and acidic substrate, have something new to grow and add to their collection of native plants.

The scientific name of the genus Eriophorum derives from the Greek words erion (cotton or wool) and phoros (bearing). The common name is a reference to the cottony nature of the fruiting heads.
All species have +/- the same cotton-like fruiting heads and they are mostly white color. In case of the Tawny cottongrass they are brownish-yellow in color (at full maturity).

Tawny cottongrass can be found in open areas in bogs, conifer swamps, low, wet depressions on rocks, wet meadows.
This species is easily distinguished from other North American Eriophorum species because it is flowering and fruiting later in the season; the spikelets are usually maturing in August and have a rather brownish color. There are of course other methods of ID, but we can keep it simple in this case.

It is a sedge, with slender, grass-like leaves; rhizomatous. The fruiting heads are covered with a cottony mass, and the fruits are 3-angled, brown to black achenes with silky, tawny, hair-like bristles longer than the achenes; one of those situations when the fruits are commonly called seeds. The hairs help with the distribution by wind or water.

Besides their ornamental fruitheads, Eriophorum species also have wildlife value, with the foliage consumed by many small and large mammals and various birds feeding on their seeds.
There are also reports of consumption by Indigenous People of the young stem bases and the roots of the Slender Cotton-grass, E. gracile (raw or cooked).
Also, the seeds hairs have been used to make candle wicks and for stuffing pillows.