Chaenactis carphoclinia, or pebble pincushion, is an annual herb growing an erect, branching stem up to about 60 centimeters (2 feet) in maximum height.
The longest leaves are about 10 centimeters (4 inches) long and are usually divided into a few lobes.
The inflorescence bears a few flower heads, each up to a centimeter wide.
The head is lined with flat, sharp-pointed phyllaries which are reddish.
The head contains several white or pink-tinted flowers with long, protruding anthers.
The fruit is an achene a few millimeters in length tipped with a scaly pappus.

Varieties
There are two varieties of  Chaenactis carphoclinia:
C. c. var.
carphoclinia is a smaller variety found throughout the species range
C. c. var.
piersonii is a larger variety known only from the Santa Rosa Mountains in southern California
Chaenactis carphoclinia, or pebble pincushion, is an annual herb growing an erect, branching stem up to about 60 centimeters (2 feet) in maximum height. The longest leaves are about 10 centimeters (4 inches) long and are usually divided into a few lobes. The inflorescence bears a few flower heads, each up to a centimeter wide. The head is lined with flat, sharp-pointed phyllaries which are reddish. The head contains several white or pink-tinted flowers with long, protruding anthers. The fruit is an achene a few millimeters in length tipped with a scaly pappus.
Varieties
There are two varieties of  Chaenactis carphoclinia:
C. c. var. carphoclinia is a smaller variety found throughout the species range
C. c. var. piersonii is a larger variety known only from the Santa Rosa Mountains in southern California
Chaenactis carphoclinia