Muhlenbergia racimosa

Marsh Muhly

Field view of Muhlenbergia racimosa, common name Marsh Muhly.

The seedheads are spike-like "puffs" that are more open near the base.

Muhlenbergia racimosa has very wide leaves.

The seedheads often show their branches in the lower parts.

Each branch is a cluster of tiny Muhlenbergia racimosa spikelets.

Like all Muhlys, there is only one floret or "seed" per spikelet. The lower left one shows equal glumes.

Another view showing the wide leaves--up to 3/4 inch, usually less.

The prominent ligule is 1/4 inch long. This one has split in the middle.

A few roots of Marsh Muhly.

How to Identify Marsh Muhly

  Growing in and near wet places, Muhlenbergia racimosa has upright, puffy seedheads and extra wide leaves. Look for the little half-inch bundles of "seeds" (spikelets). The lowest bundles are often separated from the others. As in all Muhlys, each spikelet contains only one floret, containing the single seed (this is the give-away). Marsh Muhly is perennial and grows up to three feet high.

Similar Species

  Orchardgrass or Dactylis glomerata is similar. Take a close look at the fluffy seed bundles (the puffy branches) to see the obvious differences in detail (several florets per spikelet).
  Polypogon looks similar but is smaller, shorter, and the awns are longer.
  If in doubt, check the Puffs page.