''Hymenoxys jamesii'' is a North American species of flowering plant in the

daisy family The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

known by the common name James's rubberweed. It has been found only on the Mogollon Plateau of

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

in the southwestern United States. ''Hymenoxys jamesii'' is a perennial herb up to 120 cm (4 feet) tall. One plant can produce sometimes as many as 330 flower heads in a branching array. Each head has 7–9 ray flowers and 30–75 tiny disc flowers.Flora of North America, ''Hymenoxys jamesii'' Bierner, 1993. James’s rubberweed
/ref>Bierner, Mark William. 1993. Madroño 40(1): 43–45
/ref>

References

jamesii Flora of Arizona Plants described in 1993 {{Asteroideae-stub