Quercus spp. of the family Fagaceae, including at least the following:
Quercus chapmanii --- burr oak, Chapman oak, Chapman white oak, scrub oak
Quercus macrocarpa --- burr oak, mossy overcup oak, overcup oak
Quercus petrae --- sessile oak, brown oak, burr oak, European oak, scrub sessile oak
(Quercus robur also has burr oak as a common name, but it is more commonly called European oak and is on this site on those pages
Burr oak is in the white oak group of oaks, and it is one that often has particularly long rays that make for very long ray flakes on quartersaw surfaces, as you can see in some of the pics below.
my samples: NOTE: these pics were all taken in very bright incandescent lighting ("soft white" at 2700K) colors will vary under other lighting conditions
both sides of a sample plank of bur oak / Quercus macrocarpa --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site. "Bur" is about as common a spelling for the common name as is "burr"
end grain and end grain closeup of the piece directly above
end grain and end grain closeup of the piece directly above
for this one, I took this extra pic of the other end because it shows quite nicely how LONG the rays can be in this species.
END GRAIN UPDATE from directly above although I see I got it upside down
both sides of a sample plank of burr oak / Quercus macrocarpa --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above
both sides of a sample plank of burr oak / Quercus macrocarpa --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above
both sides of a sample plank of bur oak [aka burr oak] / Quercus macrocarpa
end grain and end grain closeup of of the piece directly above
both sides of a sample plank of burr oak / Quercus macrocarpa --- HUGE enlargements are present. This sample was loaned to me by David Clark whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above
both sides of a sample plank of quartersawn burr oak / Quercus macrocarpa --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site.
end grain and end grain closeup of the piece directly above
both sides of a sample plank of burr oak (Chapman oak) / Quercus chapmanii --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site. I note that the earlywood pores on this sample are just one row thick, unlike most oaks.
end grain and end grain closeup of the piece directly above
burr oak plank --- both sides; as you will see from the end grain shot of the smaller plank below (cut from this one) this plank is almost perfectly quartersawn, thus the large ray flakes.
closeup of the burr oak plank directly above
burr oak plank and end grain --- this was cut from the larger plank above and sanded for the pics
end grain closeup and END GRAIN UPDATE of the piece directly above
flat cut, quartersawn, end grain
burr oak (Quercus macrocarpa, also listed as mossy-cup oak and over-cup oak) from The Wood Book --- both levels of enlargement are available for each of the 3 views
web pics:
burr oak planks
burr oak flooring
burr oak movable kitchen work island
burr oak bowl and closeup --- the dark coloring in the outer portion is clearly something added by the turner for effect
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