Oak, Sessile

[[Category:Deciduous Trees]]
[[Category:pictures needed]]


”’Scientific Name”’: ”Quercus petraea”

””Family”’: ”Fagaceae”

”’Also known as”’: Durmast Oak or Cornish Oak

”’Habitat”’: Woodlands, especially on acid/light soils. Not usually found in lowlands. It is the official national tree of Ireland and is native to most of Europe. It is commonly located in hilly regions.

”’Description”’: It can grow up to 20-40m tall. As oaks mature they form a broad and spreading crown with sturdy branches beneath. Their open canopy enables light to penetrate through to the woodland floor, allowing bluebells and primroses to grow below.

”’Identifying Features”’:
* ”’Bark”’ – Becomes progressively fissured and wholly grey in more mature trees with short nobbly ridges.
* ”’Twigs”’ – Silvery and hairless with small lenticels.
* ”’Buds”’ – Orange-brown, egg-shaped buds with clusters at shoot tips. Each bud has more than 3 scales.
* ”’Leaves”’ – The leaves are 7–14 cm long and 4–8 cm broad, evenly lobed with five to six lobes on each side, and a 1-centimetre-long petiole.
* ”’Flowers”’ – Sessile oak is monoecious, meaning male and female flowers are found on the same tree. Male flowers are green catkins and female flowers are inconspicuous clusters of bracts (modified leaves), which resemble red flower buds.
* ”’Fruits”’ – After pollination by wind, female flowers develop into a shiny seed held in a scaly wooden cup, commonly known as an acorn. Young acorns are green, maturing to brown before they fall. Unlike ”Q. robur”, sessile oak’s acorns have very short stems (peduncles).

==Pictures throughout the year==



Refer to [[Oak, English]].

==Gav notes==
Sessile oak has stalkless (sessile) acorns and the two species often hybridise. It has a more upright trunk and straighter branches than English oak, and the leaves have longer stalks.

===Known hazards===
None known.

===Potential lookalikes===
Refer to [[Oak, English]].

*Tree & Plant ID Course from Foundation Bushcraft – http://identificationmasterclass.com/
*Wikipedia – https://en.wikipedia.org/wiki/Quercus_petreae
*Woodland Trust – https://www.woodlandtrust.org.uk/visiting-woods/trees-woods-and-wildlife/british-trees/native-trees/sessile-oak/

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