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Amauriopsis dissecta
Amauriopsis dissecta

Amauriopsis dissecta. Synonym: Bahia dissecta. (Bahia)
Asteraceae (Sunflower Family)

Foothills, montane. Disturbed areas, meadows. Summer, fall.
Above: Chimney Rock National Monument, September 16, 2005.
Left: Highway 145 north of Dolores, August 25, 2005.

Amauriopsis dissecta is fairly common in late summer and early fall growing along roadsides and on dry, gravelly, sandy, open sites in the lower mountains.  It has an open, airy growth pattern, grows from 8 to 36 inches tall, and has bright golden/yellow flowers, almost always with rounded, short overlapping ray flowers and a large mound of disk flowers. 

The spreading and arching of leafless flower stems is typical Amauriopsis' growth. 

The Bahia genus was named by Lagasca in 1816 from a specimen collected in Chile, probably by Sesse and Mocino on their 1787-1803 Spanish Royal Expedition to New Spain. "Bahia" is for Juan Francisco Bahi, Professor of Botany in Barcelona, Spain in the 19th century.  (More biographical information about Bahi.)

Augustus Fendler collected the first plants of this species near the Mora River in New Mexico in about 1846, and the species was at first named Amauria dissecta by Asa Gray in 1849. In 1889 Britton named it Bahia dissecta and that name was widely accepted for over a centuryIn 1914 Per Axel Rydberg maintained that the species is not a Bahia and he placed it in a new genus, Amauriopsis. That designation was reaffirmed almost a hundred years later as the proper name of this species.  

Greek gives us "amauros" for "dark" or "obscure", a name given by Bentham and referring, according to Kelley Allred, "to the difficulty in classifying... the genus" now known as "Amauria".   "Opsis" is Greek for "appearance" Thus in total Amauriopsis means: the genus that appears to be (looks like) the genus "Amauria".

Amauriopsis dissecta

Amauriopsis dissecta. Synonym: Bahia dissecta. (Bahia)
Asteraceae (Sunflower Family)

Foothills, montane. Disturbed areas, meadows. Summer, fall.
Boggy Draw Trail, August 16, 2016.

"Dissecta", "cut into pieces", refers to the finely cut leaves which occur sparsely along the red/brown stems and more noticeably at the base of the stems.

The basal leaves in the photograph at left are in their chlorophyll stage whereas the maroon leaves at the base of the photograph at the top of this page show the fall color after the chlorophyll is no longer produced. Maroon is also the basal leaf color in the spring.

Amauriopsis dissecta

Amauriopsis dissecta. Synonym: Bahia dissecta. (Bahia)
Asteraceae (Sunflower Family)

Foothills, montane. Disturbed areas, meadows. Summer, fall.
Chimney Rock National Monument, September 16, 2005.

Gently rounded petal tips are slightly notched.  Ray flowers overlap and each ray flower is just a bit shorter than the central disk of flowers. The flowers pictured at left are typical of Amauriopsis dissecta; the ones below with brighter yellow, narrower, and longer ray flowers with spaces between the ray flowers, are less common.  

Amauriopsis dissecta

Amauriopsis dissecta. Synonym: Bahia dissecta. (Bahia)
Asteraceae (Sunflower Family)

Foothills, montane. Disturbed areas, meadows. Summer, fall.
Highway 145 north of Dolores, August 25, 2005.

Fine hairs cover much of Amauriopsis dissecta

Compare the ray flowers at left with those above; they are brighter yellow, narrower, longer, and have wide spaces between the ray flower petals. Within any plant species there is variation in flower sizes, plant height, hairiness, etc.

 

Range map © John Kartesz,
Floristic Synthesis of North America

State Color Key

Species present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Amauriopsis dissecta