This attractive plant that grows on limestone soils from 6,500 to 11,500 feet is pink alumroot (Heuchera rubescens), a member of the Saxifrage Family (Saxifragaceae). It is found in the Intermountain West.
The pink flowers are small, with white at the tips and are found branching off long petioles.
Growing next to a stream I noticed leaves that were a notched semi-circle with even dentations all around the edge. Rising from these leaves was a slender stalk and delicate, small flowers. This was brook saxifrage (Saxifraga odontoloma), also called streamside saxifrage. It is native to western North America.
The flowers have five petals with a two-beaked pistil and ten reddish anthers.
This dainty white flower can easily be missed on the forest floor, but I've seen the leaves of the plant for weeks now. It's in the Saxifrage Family (Saxifragaceae) and is Slender Woodland-Star (Lithophragma tenellum). Other common names include dainty star and slender fringecup. 
The flower is about a foot tall, rising on a stalk from a mat of basal leaves.
For an excellent description of how to tell slender woodland-star apart from two other Lithophragma species, click here.
