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Poa Douglasii or Douglas bluegrass is a species of meadow grass




Images of Poa Douglasii at google.com

Poa Douglasii which is also known as Douglas bluegrass is a species of meadow grass.

Overview of Poa Douglasii

• Poa douglasii is also known as sand dune bluegrass.
• It is endemic to California coastline.
• Here it grows in shifting sand dunes.
• It can be found mostly:
– Along the Central Coast
– Channel Islands
– On the North Coast north of Mendocino
• It is a perennial grass.
• It grows in small and dense clumps.
• These clumps can grow up to a height of 30 centimeters.
• It has a network of long rhizomes.
• It has stolons that hold the grass to the soil.
• It grows from these rhizomes.
• The network is about a meter in length.
• The inflorescence is dense and oval-shaped.
• They are a series of overlapping spikelets.
• The grass is dioecious.
• This means the male and female individuals are different.
• The flowers vary in their inflorescences.
• This species is threatened by invasive species.
• It is found in an elevation between 0 and 328 feet.
• It is a monocot.
• It belongs to the family Poaceae.
• Its growth habitat is known as Graminoid.

Lepidoptera whose caterpillars use Poa as its food include:
• Agriphila inquinatella
• Cercyonis pegala
• Poanes hobomok
• Poanes zabulon

Scientific Classification of Poa Douglasii

• Kingdom : Plantae
• (unranked) : Angiosperms
• (unranked) : Monocots
• (unranked) : Commelinids
• Order : Poales
• Family : Poaceae
• Subfamily : Pooideae
• Genus : Poa
• Species : P. douglasii
• Binomial name : Poa douglasii

Growing/Caring conditions

• This is an incredibly easily grown plant.
• It succeeds in well-drained soils.
• It prefers moderately fertile soil.
• It grows well in a sunny position.
• It can tolerate very acid soils.
• This plant is a very common garden weed.
• It usually does not require cultivation.
• This is an essential food plant for the caterpillars of numerous species of butterfly.
• It is seen growing in close cut lawns.
• The seed drops very readily in the plant and hence is difficult to harvest.
• But this way the seed is spread effortlessly.
• It makes the flower even more difficult to eradicate.
• A lot of the species are very important pasture plants.
• They are used extensively by grazing livestock.
• Many of the Poa species are popular for gardens as well as for landscaping in New Zealand.





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