Linnea is named after the twinflower (Linnaea borealis) — a small pink wildflower of northern forests, named in turn after the 18th-century Swedish botanist Carl Linnaeus, who developed the system of taxonomic naming still used today. He considered the twinflower his favourite plant.
Linnea is among the most popular girl names in Sweden and Norway. It is rising in Western records as part of the broader return of Nordic names. Three soft syllables and a flower's history attached.
Linnea does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Linnea reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.