Bjarkan and the Sixteen-Rune Reduction

Bjarkan is the thirteenth of the sixteen Younger Futhark runes, descending from Berkano, the Elder Futhark's own eighteenth rune, its core meaning of the birch tree carried forward closely, matching the same stability the Old English Beorc shows relative to its own Elder Futhark ancestor, botanical images generally surviving reinterpretation better across every runic tradition this survey has covered than more abstract concepts such as Ur's dross or drizzle.

Barnes' handbook notes Bjarkan's sound value b as absorbing, like several of the row's other consonants, both the voiced b and unvoiced p sounds of Old Norse, a single sign covering a phonetic pair the spoken language kept distinct, the same pattern of deliberate economy already noted for Kaun's k and g, and Tyr's t and d. Bjarkan's position thirteenth of sixteen places it within the row's final third, following Tyr and preceding only Madr, Lögr and Yr before the sixteen rune sequence closes. Barnes notes that Bjarkan's continued botanical reading across every runic tradition surveyed here, alongside Isa's ice and Sol's sun, places it among the small group of Younger Futhark signs whose Elder Futhark meaning needed essentially no reinterpretation at all to remain current for a medieval Norwegian or Icelandic audience centuries later.