Arrowgrass basal leaves, and Foxtail Barley

Description:

Sheathing, erect leaves (up to about as half as long as its full height) of Triglochin maritima.Some of the other native plants in this picture include the little yellow flowering buttercup, Ranunculus cymbalaria (Halerpestes cymbalaria) at the far right/bottom, and young ragweeds Ambrosia artemisiifolia (at far left).Also, the tall true grass with the long whispy awns is Foxtail barley, Hordeum jubatum subsp. jubatum. Taxonomists seem to be in wide agreement that this is a native species to the western United States (there are two subspecies, both native) but that is behaves like a weed since they occupy a wide variety of habitats with extremely elevation ranges and will occupy disturbed habitats and roadsides. Introduced/weed: the clover that also is in flower is Trifolium fragiferum and not what we had hoped it would be. July 14, 2012, Millcreek Township, Salt Lake County, Utah, approx. 4300 ft. elev.