The spectrum seen here is from the "yellow-white" part of the match flame and is produced by
soot particles. These soot particles (basically carbon "super-molecules") produce many very closely-spaced
emission lines, so closely spaced that the spectrum appears continuous unless examined VERY closely. Although it looks
continuous, this is not a "blackbody" (Planckian) spectrum as the peak at 650 nm would suggest (from Wein's Law) that the blackbody
temperature would be about 2900000 / 650 = 4500 K while match flames actually have temperatures of only 800 K or so.