Pennisetum setaceum is also known as?

Pennisetum setaceum is commonly referred to as Crimson Fountaingrass. This ornamental grass is appreciated for its striking appearance, featuring tall, arching flower spikes that resemble fountains of crimson or purple. It is widely used in landscaping and exhibits a lush, tropical look that can enhance gardens and parks.

The other options represent different species. Yellow Star Thistle (Centaurea solstitialis) is a noxious weed known for its yellow flowers and spiny seed heads. Cape Ivy (Delairea odorata) is a vigorous vine with invasive tendencies in certain areas, characterized by its glossy green leaves and yellow flowers. Spotted Knapweed (Centaurea maculosa) is another invasive plant known for its purple flowers and is notorious for its aggressive spread in various habitats. Each of these species is distinct in its biological characteristics and ecological impacts, confirming that the correct identification of Pennisetum setaceum is indeed Crimson Fountaingrass.