This is just a species of maple. It is also called sycamore maple but it is what's called "sycamore" in England (or plane, or planetree, or English maple, or any number of other common names). The specific epithet means "false sycamore". Although this is a different maple species than what is normally sold in the USA as curly hard maple (Acer saccharum), I am not aware of any characteristics that would allow you to tell the wood from the two species apart (the TREES may be distinguishable, but I think the lumber/veneer is not). SO ... really, this is just another one of those maples that is sold in the USA as "hard maple" but since when it grows in England it is called harewood, I have given it its own page here.
Hoadley states that harewood is a name given in England to maple wood that is artificially dyed gray. In my experience, that is not the case in the USA, where the name is used as described in the paragraph above. I do note that a couple of the pics I found on the Internet, shown in the "web pics" section below are gray. My friend Mark Peet who is extremely knowledgeable about wood tells me that there is a chemical reaction of some kind (probably caused by a fungus) that occasionally occurs in some woods, particularly in Acer pseudoplatanus, that causes the wood to turn gray. Since this process was not fully understood and could not be forced, but for unknown reasons the wood was found attractive by some, a chemical bath process was devised to make the wood take on the same gray color, which is presumably where Hoadley's statement comes from.
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 harewood / Acer pseudoplatanus --- HUGE enlargements are present. The vendor has this as sycamore maple which is another common name for this species.
NOT A RAW WOOD COLOR --- both faces of this sample have a light coat of clear paste wax
both sides of a sample plank of curly harewood / Acer pseudoplatanus --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site. Mark pointed out to me that this piece looks exactly like a piece of Norway maple that he has. There is no implication in that statement that either of those identifications are incorrect but rather that Acer pseudoplatanus and Acer platanoides can be indistinguishable at the level of a 10X loupe.
end grain and end grain closeup of the piece directly above. Note that the end grain closeup and the update directly below are shown here a bit too orange.
NOT A RAW WOOD COLOR --- both faces of this sample have a light coat of clear paste wax
both sides of a sample plank of gray phase English sycamore maple / Acer pseudoplatanus --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site. Mark tells me that this "gray phase" is a temporary sap condition that turns the wood brown. I had never heard of it and a quick Internet search does not turn up any other references but Mark knows what he's talking about so I take his word for it.
end grain and end grain closeup of the piece directly above
fiddleback veneer and closeup, sold to me as English sycamore
fiddleback veneer, sold to me as English sycamore
web pics:
end grain listed as sycamore maple / Acer pseudoplatanus
planks, all from the same vendor and all listed as figured European maple / Acer pseudoplatanus
listed as figured English harewood
planks listed as English maple / Acer pseudoplatanus
plank listed as sycamore maple
plank listed as quartersawn curly English sycamore
planks listed as English sycamore
veneer, all from the same vendor and all listed as curly
veneer, all from the same vendor as the lot directly above and all listed as fiddleback
plank listed as fiddleback English sycamore
veneer listed as harewood
veneer listed as figured harewood
veneer listed as quartersawn figured harewood
veneer listed as quartersawn figured harewood
veneer listed as British sycamore / Acer pseudoplatanus. These four are, in order
flat cut figured
flat cut
quartersawn bookmatched
quartersawn curly bookmatched
veneer listed as steamed sycamore / Acer pseudoplatanus. These four are, in order
flat cut figured
flat cut
quartersawn figured (this is bookmatched, although not listed as such)
quartersawn
veneer sheets listed as English sycamore / Acer pseudoplatanus. Both levels of enlargement are present. Given the swirl in the grain, I think these must be rotary cut.
veneer listed as English sycamore
veneer listed as figured English sycamore (and in the enlargement you can tell that it DOES in fact have some figure --- a very faint fiddleback, not really worthy of the designation)
veneer listed as figured English sycamore
veneer listed as "figured sycamore" / Acer pseudoplatanus and a piece listed as "sycamore" / Acer pseudoplatanus
veneer listed as quartersawn curly English sycamore
veneer listed as fiddleback English sycamore
cluster burl
harewood burl veneer
guitar back listed as sycamore maple
curly English sycamore platter
goblet of "London sycamore" shot at a woodworking show. HUGE enlargements are present. There is no finish on this piece. It is not completely clear whether this is Acer pseudoplatanus or not, but I'm going under the assumption that it is.