Helianthus Maximilianii, also known as Maximilian's sunflower, is a tall, perennial sunflower native to North America. Its common name comes from the fact that it was named after Prince Maximilian of Wied-Neuwied, a German explorer and naturalist.
Some synonyms for Helianthus Maximilianii include Maximilian sunflower, prairie sunflower, and Max sunflower. This sunflower species is known for its tall, slender stalks that can reach up to ten feet tall and its bright yellow flowers that bloom from summer to fall. It is also an important food source for birds and insects, making it a valuable addition to any garden or natural area.