Tag Archives: white

Sweet potato latex

Here’s a fun trick for Thanksgiving. If you get into an argument about whether you purchased yams or sweet potatoes at the store, chop one in half before cooking and look for milky white sap bleeding off the flesh. Only sweet potatoes do that. But if you don’t see sap, that might mean you just have an old sweet potato, so don’t place large bets when doing this. More useless trivia at “Yams versus sweet potatoes“.

close-up photograph of cut sweet potato exuding white latex sap

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Sweet potatoes and yams

Some photographs to get you excited about starches on Thanksgiving.  If you’re curious about the difference between yams, sweet potatoes, and potatoes, please refer to my page, “Yams and sweet potatoes are not potatoes.”

colin purrington photography: plants &emdash; yam-display-at-ethnic-grocer
The bin of “#1 American yams” is filled with sweet potatoes. The labeling mistake is a common one. The white yam and yellow yams are actual yams.
colin purrington photography: plants &emdash; purple-yams
Okinawan sweet potatoes label as yams. They are not yams.
colin purrington photography: plants &emdash; oriental-sweet-potato
Oriental sweet potatoes. Note that sweet potatoes are not potatoes.
colin purrington photography: plants &emdash; potatoes
Potatoes are unrelated to sweet potatoes.

 

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Masked robin

Mutant robin (Turdus migratorius) with mask of white plumage. I suspect the leucism  was congenital because the patches were located on several parts of the body (injury and parasites can sometimes cause regrowth to be white).  Regardless of cause, it’s a good look. Spotted on the campus of Swarthmore College, Swarthmore, Pennsylvania.

Colin Purrington Photography: Birds &emdash; Leucistic American robin
Robins seem to be famous for leucism (Gross 1965), as a Google image search will confirm.  If you’d like to see some even stranger birds, check out this page from Cornell University.

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