Tall, rigid stem. Shallow roots. Provides shade to other animals and plants. Most common specie in meadow
may be シマスズメノヒエ.
I felt this is smaller.
fore dune and crest
竹節草 Wild Oat Grass or Chrysopogon aciculatus
This is the first grass to flower around here, which makes me think of sweet vernal which flowers in October. When I looked at the images on the computer, some of them looked just like the plant seen for this observation, seen in photo 3. I am sorry the close up in photo 1 did not focus. Photo 2 shows the bottom half of the grass.
The Poaceae (also called Gramineae or true grasses) are a large and nearly ubiquitous family of monocotyledonous flowering plants. With more than 10,000 domesticated and wild species, the Poaceae represent the fifth-largest plant family, following the Orchidaceae, Asteraceae, Fabaceae, and Rubiaceae. Though commonly called "grasses", seagrasses, rushes, and sedges fall outside this family. The rushes and sedges are related to the Poaceae, being members of the order Poales, but the seagrasses are members of order Alismatales.