Quick answer: 16 native Arkansas plants have a recorded bloom range that includes October.
16 species
- Big bluestem Andropogon gerardii · 25 states
- Black-eyed Susan Rudbeckia hirta · 42 states
- Blue mistflower Conoclinium coelestinum · 26 states
- Buffalograss Bouteloua dactyloides · 9 states
- Cardinal flower Lobelia cardinalis · 37 states
- Dotted blazing star Liatris punctata · 10 states
- Great blue lobelia Lobelia siphilitica · 32 states
- Maximilian sunflower Helianthus maximiliani · 3 states
- Maypop passionflower Passiflora incarnata · 13 states
- Mexican hat Ratibida columnifera · 17 states
- Ozark witch-hazel Hamamelis vernalis · 1 states
- Prairie blazing star Liatris pycnostachya · 16 states
- Sideoats grama Bouteloua curtipendula · 25 states
- Spotted beebalm Monarda punctata · 14 states
- Swamp sunflower Helianthus angustifolius · 15 states
- Witch-hazel Hamamelis virginiana · 28 states