''Helianthus arizonensis'' is a North American species of
sunflower known by the common name Arizona sunflower. It is native to 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, Ke ...
in the southwestern United States.
''Helianthus arizonensis'' is a perennial herb up to 30 cm (12 inches) tall. Its leaves have no hairs. One plant produces 1-7
flower heads, each head with 10-14 yellow
ray florets
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 ...
surrounding at least 30 yellow
disc floret
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 ...
s.
[Jackson, Raymond Carl 1963. Brittonia 15(3): 266]
References
arizonensis
Flora of the Southwestern United States
Plants described in 1963
{{Heliantheae-stub