Ynes Mexia

Pioneering Mexican-American botanist who collected 150,000 plant specimens

Ynes Mexia (1870-1938) defied age and gender barriers to become one of history's most prolific plant collectors. Beginning her career at 55, she embarked on expeditions across North and South America, discovering 500 new species including the Mexican fir Abies religiosa.

Despite lacking formal education, Mexia developed innovative collection techniques. Her 1935 ascent of Ecuador's Chimborazo volcano (6,263m) yielded critical altitude vegetation data. Over 50 species bear her name, like Mimosa mexiae and Zexmenia mexiae.

Mexia's work supported major institutions: Field Museum, UC Berkeley, and Harvard Herbarium. She mentored young female scientists while challenging stereotypes about women in fieldwork. Her 145,000+ specimens remain vital for climate change research.

This late-blooming scientist proved that 'adventure has no age limit'. Modern botanists honor her through the Ynes Mexia Fellowship supporting Hispanic researchers. Her story features in documentaries like 'The Forgotten Expedition'.