''Centromadia parryi'', the pappose tarweed, is a
species of plant in the tribe
Madieae within the family
Asteraceae. It is found in North America where it is native to
California and, northern
Baja California.
[Calflora taxon report, University of California, ''Centromadia parryi'' (Greene) Greene, pappose tarweed ]
/ref>
''Centromadia parryi'' is an herb up to 70 cm (28 inches) tall. It produces arrays of numerous yellow flower heads
A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...
with both ray florets and disc florets.[Flora of North America, Spikeweed, ''Centromadia'' Greene]
/ref>Greene, Edward Lee 1882. Bulletin of the Torrey Botanical Club 9(2): 16
as ''Hemizonia parryi''
;Subspecies[
* ''Centromadia parryi'' subsp. ''australis'' (D.D.Keck) B.G.Baldwin - from Santa Barbara Co to Baja California
* ''Centromadia parryi'' subsp. ''congdonii'' (B.L.Rob. & Greenm.) B.G.Baldwin - from Solano Co to San Luis Obispo Co
* ''Centromadia parryi'' subsp. ''parryi'' - from Glenn Co to Santa Clara Co
* ''Centromadia parryi'' subsp. ''rudis'' (Greene) B.G.Baldwin - from Butte Co + Mendocino Co to Merced Co; also Modoc Co
]
References
External links
photo of herbarium specimen at Missouri Botanical Garden, collected near Calistoga, California, isotype of ''Centromadia parryi/Hemizonia parryi''
Flora of California
Flora of Baja California
Plants described in 1882
Madieae
Flora without expected TNC conservation status
{{Madieae-stub