''Hymenoxys quinquesquamata'' is a North American species of flowering plant in the family
Asteraceae
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 names rincon rubberweed or rincon bitterweed. It has been found only in the states 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 ...
and
New Mexico
)
, population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano)
, seat = Santa Fe
, LargestCity = Albuquerque
, LargestMetro = Tiguex
, OfficialLang = None
, Languages = English, Spanish ( New Mexican), Navajo, Ker ...
in the southwestern United States. Many of the populations lie in the
Huachuca Mountains of
Cochise County
Cochise County () is a county in the southeastern corner of the U.S. state of Arizona. It is named after the Native American chief Cochise.
The population was 125,447 at the 2020 census. The county seat is Bisbee and the most populous city is ...
in Arizona.
''Hymenoxys quinquesquamata'' grows in open areas, generally at the edges of pine-oak forests at elevations of . It is a perennial herb up to tall. One plant can produce sometimes as many as 50 flower heads in a branching array. Each head has 5–8 yellow ray flowers and 30–100 tiny yellow disc flowers.
[Flora of North America, ''Hymenoxys quinquesquamata'' Rydberg 1915. Rincon rubberweed or bitterweed ]
/ref>Rydberg, Per Axel. 1915. North American Flora 34(2): 114–115
/ref>
References
quiquesquamata
Flora of Arizona
Flora of New Mexico
Plants described in 1915
{{Helenieae-stub