Tule Ponds at Tyson

Mediterranean Barley
Hordeum marinum
ssp. gussoneanum

Mediterranean barley often forms dense stands on the borders of marshlands.  It is a low- growing introduced annual grass with rigid, flattened flower spikes that have a light dull blue-green color

Italian Ryegrass
Lolium multiflorum

Italian ryegrass is an annual grass that has been introduced from Europe and is cultivated as a meadow, pasture, or lawn grass.  Its flowers are borne on short spikelets that alternate on the stem.  The seed has a short, thin awn (hair).  It is a considered to be a facultative wetland indicator species because it occurs in wetlands as often as it occurs in uplands.

Canary Grass

Canary grasses are annual or perennial grasses that were introduced from the Mediterranean region because they provide good forage for livestock.  They have become naturalized and are common urban weeds in moist areas.

Rabbitfoot Grass
Polypogon monspeliensis

Rabbitfoot is a low-growing annual grass that is native to Europe.  It has become naturalized in California and is commonly found growing on wet or moist soils.  The dense flowering head has long silky hairs and resembles a rabbit’s foot.

Wild Oats
Family PoaceaeAvena fatua

Most wild oats germinate and emerge in early to mid-spring. Cool, moist conditions promote maximum emergence, so crops that are seeded early are usually the most heavily infested. Fall or early spring applications of nitrogen fertilizer stimulate germination. Growth of roots and shoot of wild oats is slow for the first two weeks, but increases quickly from then on. Most wild oats tiller within a month of emergence.

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