Helianthus microcephalus T. & G.
Family - Asteraceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Involucre - No info. yet.
Ray flowers - No info. yet.
Disk flowers - No info. yet.
Flowering - August - September.
Habitat - Moist or dry open woods, swampy ground along streams, thickets, sandy fields, typically in acid or clay soils.
Origin - Native to U.S.
Other info. - This species has the smallest flowerheads of any in the genus in Missouri. The heads rarely get over 3cm broad and have 5-8 rays. A mature plant can be much larger than on the picture above, they typically reach 3-4m in height.
Photographs taken in Brown Summit, NC., 10-3-02.