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Shamrock facts & stats

7 fact-checked facts about shamrocks and clover, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

The shamrock is a traditional symbol of which country?

AnswerIreland

The shamrock has been linked with Ireland for centuries and is widely worn on St Patrick's Day.

How many leaflets does a typical shamrock leaf have?

AnswerThree

A shamrock is a young clover with three leaflets on each leaf.

Going deeper

The word 'shamrock' comes from the Irish word 'seamróg', meaning what?

AnswerLittle clover

Seamróg is a diminutive of seamair, clover, so it means 'little' or 'young clover'.

The clover genus name Trifolium means what?

AnswerThree leaves

Trifolium comes from Latin tri (three) and folium (leaf).

Why do farmers often plant clover to improve soil?

AnswerIts roots host bacteria that add nitrogen to the soil

Bacteria in clover root nodules turn nitrogen from the air into forms plants can use.

Expert level

What is the scientific name of white clover?

AnswerTrifolium repens

White clover is Trifolium repens; 'repens' means creeping, describing its spreading stems.

Which genus of wood sorrels is often sold as 'shamrock' though it is not a true clover?

AnswerOxalis

Oxalis plants also have three-part leaves and are sold as shamrocks, but they are not clovers.

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