Echinochloa ID ...
|[Note Guidelines] Photographer's Note|
|Echinochloa is a grass genus, some of whose members are millets grown as cereal or fodder crops. The most notable of these are Japanese Millet (E. esculenta) in East Asia, Indian barnyard Millet (E. frumentacea) in South Asia and Burgu Millet (E. stagnina) in West Africa. Collectively the members of this genus are called barnyard grasses (though this may also refer to E. crus-galli specifically), barnyard millets or billion-dollar grasses.|
When not grown on purpose, these grasses may become nuisance weeds. In particular Common Barnyard Grass (E. crus-galli) is notorious in this regard; it is not easily suppressed by living mulch such as Velvet Bean (Mucuna pruriens vat. utilis). Early Barnyard Grass (E. oryzoides) is a well-known example of Vavilovian mimicry: the plants have evolved to resemble rice (Oryza), enabling them to escape weeding more easily.
Among the plant pathogens that affect this genus are the sac fungus Cochliobolus sativus – which has been noted on Common Barnyard Grass – and rice hoja blanca virus. Both affect many other grass species, in particular most important cereals, and Echinochloa weeds may serve as a reservoir. The fungi Drechslera monoceras and Exserohilum monoceras have been evaluated with some success as potential biocontrol agents of Common Barnyard Grass in rice fields; more research is necessary however because they too may not be host specific enough to be of practical use. Source
Awns up to more 15 cm, species ID ?
This photo is taken in Montornès, el Vallès Oriental (B), Catalunya
Poaceae in my Personal web
BREARD, marius-secan, maaciejka has marked this note useful
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- [2011-10-16 23:28]
Belle composition. Les détails sont agréables et la lumière très bonne.
Good photo of the grass with excellent detail and nice background. regards yiannis
A splendid image with superb details and very good contrast.
Interesting and lovely POV. The colors and sharpness are great.
nice photo of this plant. Excellent point of view. Great sharpness and composition.
Have a nice week,