Question: The son of who was a German botanist, horticulturist, and microscopist, who joined the Schleswig-Holstein army to fight the first round of military conflict in southern Denmark and northern Germany rooted in the Schleswig-Holstein Question?
Sentence (from "First Schleswig War"): The war, which lasted from 1848 to 1851, also involved troops from Prussia and Sweden.
Relevant evidence: No