Helianthus tuberosus L.

PLANTS OF THE OZARKSr U.S.A.
ASTERACEAE
Helianthus tuberosus L.
Det. A. Christ
MISSOURI: Jefferson County
6.5 mi (10.5 km) W of DeSoto.
T39Nr R3Er Sec. 11. Large pasture
in floodplain of Big River just E of
confluence of Parker Creek.
38°07,30"N 90040130HW 560 ft(170 m)
Rhizomatous/ common/ colonial perennial/
ca. 2 m tall? flowers golden-yellowr the
disc corollas darker; anthers brownish;
lower leaves opposite/ the upper ones
alternate.
18 September 1986
Peter H. Raven 27420
MISSOURI BOTANICAL GARDEN HERBARIUM (MO)
02893840