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grass of open aspect, photo  .  Generally, however, Agropyron
species are present as scattered individuals and rhizomatous clones
helping to form a sparse open cover of more than average stature.
Some of the bunchy forms reach two meters in height. They mingled
with the Bromus-Festuca and the Agropyron cristatum communities, as
well as with the bushy shrubs of Astragalus, Craetegus, Prunus, etc.
Some of the species are highly variable and appeared to intergrade.
All appeared to be palatable but some are obviously more preferred
by cattle.  Some species grow both upon limestone and volcanics, while
others, like A. cristatum, were found only on volcanics.

Dactylis glomerata is common both in and out of grassland
proper.  It prefers well-drained soils, occurs in both limestone
and volcanic areas, along meadow slopes as well as upon rocky heights,
and may be found in small colonies along canyon streamways as low as
5000 feet elevation.  It is always of scattered presence and appeared
to have varietal differences in some localities.  It is a hay component
of some of the pastures so-used in Azerbaijan and is everywhere
palatable.

There are many excellent forage potentials among these highland
grasses for western and northern United States;  a bonanza to
the plant prospector.

The meadow lands of the Iranian mountains are rich in grasses
and contain several variable species of Trifolium.  The habitat
grades from the mesophytic to the aquatic with grasses dominating.
There is a strong tendency among many species to form pure colonies.
As these are limited in extent the general aspect is apt to be patchy
        