At a glance

• Letter: Z
• Tree: blackthorn
• Place: letter 14 of the 20 original letters, the fourth of Aicme Muine
• Written with: 4 strokes slanting across the stem line
• Also known as: Straiph, Straith
• Keywords: strife, hard choices, fate, blackthorn, protection, boundaries, hardship, thorn, shillelagh, sloe

Lore and history

In the medieval Irish texts, Straif is named as the fourth letter of Aicme Muine, the third of the four aicmi, its four strokes slanting across the stem line of the ogham script. The tree most often named for Straif in the old sources is blackthorn, a dense, thorned tree that grows in tangled hedgerows across Ireland and flowers starkly white before its leaves appear, often during a cold snap that country people long called blackthorn winter. Irish folklore wove the blackthorn into stories of the Cailleach, the old woman of winter, and regarded its dark wood with real wariness even as it was prized for walking sticks and the fighting cudgel known as the shillelagh. Blackthorn hedges also marked old boundaries and fairy paths in the Irish countryside, and the tree's sharp thorns made it as much a guardian as a hazard in the stories told around it.

In a reading

In modern ogham practice, Straif is drawn as a letter of strife, hard choices, and fate, the moment when a path narrows and a real decision can no longer be avoided. Many of us feel blackthorn's spirit in this letter too: a tree that defends itself fiercely with its thorns, that blooms through cold and hardship, and that has long carried associations with the Cailleach and the dark, testing side of the turning year. When Straif comes up in a reading or casting, many practitioners take it as a sign to face a difficult truth, set a firm boundary, or trust that something necessary is cutting away what no longer serves. Blackthorn's gift in this work is the reminder that protection and hardship can grow from the same root, and that real strength often takes shape precisely where the going gets thorny.

A little more

The blackthorn's wood is the traditional material of the shillelagh, the iconic Irish walking stick and fighting cudgel, prized for how dense and hard the wood becomes with age and careful curing.

Keep exploring

• Before it: nGeadal
• After it: Ruis
• All 25 ogham letters