I know certain burls have distinct visual features, profile attributes, density and/or aroma that are recognizable and they can be identified. If no one said what a specific burl was whether it was in blank form or a finished product, I am fairly certain that we as a group would not do well and get a grade “D or F” identifying burls in general. This one posted in particular, I am certain that we will not have an educated guess. Burl’s in general from the outside look’s like an elephant’s or rhino’s @$$. I don’t have an educated guess on what this is based on the photo’s, but I know for certain that this is no western big leaf.
My guess is still Big leaf. Why- in 2020 alone- we were bad. Oregon and Washington had draconian mandate rules. Washington was only state that banned fishing. and in the beginning non union construction was not allowed- unions had immunity ( I know bad joke) But truth none the less.
But all that flood of money, my burl stock was shrinking so we decided we would do short day drives( 750 mi.) to keep burl stock up. First trip- Yikes- no traffic-cheap fuel. 10 trips until supply dried up.
My point- i know always long winded, not like that Arn guy and he edits. I and Jake cut 50,000+- lbs of burl that year. almost all big leaf. from dark red- called red heart to snow white brown, tans. Nobody has has a suggestion that made a real guess. If I cut a slice off that I could tell you, especially with dull blade- distinct subtle smell.
Big leaf- the weed with many faces- curl, quilt, spalt,, burl and... cheap big. the color is perfect.
Nobody is expert on burl ID in my opinion. aberrations are not east to ID. sand the end grain- it is all end grain. density- yikes Big leaf burl varies a lot in density. Burl follows no rules.
I will add picture