About Pleurocoronis pluriseta (A.Gray) R.M.King & H.Rob.
Pleurocoronis pluriseta, which has the scientific name Pleurocoronis pluriseta (A.Gray) R.M.King & H.Rob., is a species of flowering plant in the family Asteraceae. It is commonly known by the name bush arrowleaf. This plant is native to the southwestern United States and northern Mexico, where it grows in desert scrub and similar types of habitat. It is a clumpy or bushy subshrub that reaches a maximum height of around half a meter, and it produces many slender branches. Its distinctive leaves are several centimeters long, and most of the leaf length is made up of the petiole. A toothed diamond- or arrowhead-shaped blade, no longer than one centimeter, usually sits at the very tip of the petiole. The inflorescence is made up of one or two flower heads, and may sometimes have more. Each flower head is somewhat cylindrical or bullet-shaped, and can grow up to around one centimeter long. The flower head is discoid, meaning it contains only disc florets and no ray florets. It is lined with a series of many phyllaries, which are coated thinly in glandular hairs and often marked with purple-red streaks. The tips of the outer phyllaries curve outward. The fruit of this plant is a hairy, ribbed achene that is a few millimeters long, and it has a pappus made of bristles and scales at its tip.
