Rosa minutifolia
Encyclopedia
Rosa minutifolia is a species of rose
Rose
A rose is a woody perennial of the genus Rosa, within the family Rosaceae. There are over 100 species. They form a group of erect shrubs, and climbing or trailing plants, with stems that are often armed with sharp prickles. Flowers are large and showy, in colours ranging from white through yellows...

 known by the common names Baja rose and small-leafed rose. This is a very spiny, dense shrub native to the chaparral
Chaparral
Chaparral is a shrubland or heathland plant community found primarily in the U.S. state of California and in the northern portion of the Baja California peninsula, Mexico...

 plant community of Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...

 and San Diego County, California
San Diego County, California
San Diego County is a large county located in the southwestern corner of the US state of California. Hence, San Diego County is also located in the southwestern corner of the 48 contiguous United States. Its county seat and largest city is San Diego. Its population was about 2,813,835 in the 2000...

. It is grown elsewhere as an ornamental. The branches of the shrub are gray to red-tinted and covered in long and short spines. The shiny toothed leaves are composed of small leaflets only about half a centimeter wide. The blooms are generally bright pink with many yellow-anthered stamens
Stamen
The stamen is the pollen producing reproductive organ of a flower...

and masses of prickles on the undersides.

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