''Adenophyllum porophylloides'' is a species of flowering plant in the family
Asteraceae known by the common names San Felipe dogweed and San Felipe dyssodia. It is native to the
Sonoran and
Mojave Deserts of the southwestern
United States (
Arizona,
California,
Nevada) and northwestern
Mexico (
Sonora
Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...
,
Baja California,
Baja California Sur
Baja California Sur (; 'South Lower California'), officially the Free and Sovereign State of Baja California Sur ( es, Estado Libre y Soberano de Baja California Sur), is the least populated state and the 31st admitted state of the 32 federal ent ...
).
[Flora of North America Vol. 21 Page 238, 239 ''Adenophyllum porophylloides'' (A. Gray) Strother, Sida. 11: 377. 1986. ]
/ref>
''Adenophyllum porophylloides'' is an aromatic desert subshrub with several branching stems reaching a maximum height near 60 centimeters. The sparse, clawlike leaves are divided into sharply pointed linear lobes that bear prominent resin glands. The foliage has an unpleasant scent. The inflorescence is borne on a peduncle Peduncle may refer to:
*Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed
*Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body
**Peduncle (art ...
several centimeters long. The flower head is cylindrical and lined with phyllaries with large resin glands on them. The tip of the head blooms with bright yellow to reddish orange disc florets. There are sometimes short, stubby yellow to reddish ray florets along the rim. The fruit is an achene
An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not ope ...
about 5 millimeters long with a bristly, scaly pappus.[Jepson Manual Treatment]
/ref>
References
External links
United States Department of Agriculture Plants ProfileCalphotos Photo gallery, University of California @ Berkeley
Tageteae
Flora of the Southwestern United States
Plants described in 1854
Flora of Baja California
Flora of Sonora
{{Asteroideae-stub