Northern Prairie Wildlife Research Center
Northeast Wetland Flora
Field Office Guide to Plant Species
Warty Panic Grass
Panicum verrucosum Muhl.
- Family: Grass (Gramineae)
- Flowering: August-October
- Field Marks: This annual grass differs from all other species of Panicum by the warty
second glume and sterile lemma.
- Habitat: Wet soil.
- Habit: Annual herb with fibrous roots.
- Stems: Upright, slender, usually branched, sometimes rooting at the lower nodes, smooth,
up to 3 feet tall.
- Leaves: Elongated, flat, up to 1/2 inch wide, slightly rough to the touch.
- Flowers: Borne in spikelets in open panicles, the branches of the panicle very slender,
smooth, with few spikelets; spikelets 1-flowered, ovoid, 1/12-1/10 inch long.
- Glumes: First glume triangular, 1/4 as long as second glume, both glumes smooth, faintly
nerved; second glume warty.
- Lemmas: Warty, faintly nerved.
- Sepals: 0.
- Petals: 0.
- Stamens: 3.
- Pistils: Ovary superior.
- Fruits: Ellipsoid with a minute point at the tip, smooth.
- Notes: Gleason and Cronquist call this family Poaceae.
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