Draba ramulosa is a rare species of flowering plant in the mustard family

Brassicaceae

Brassicaceae, a medium sized and economically important family of flowering plants , are informally known as the mustards, mustard flowers, the crucifers or the cabbage family....

 known by the common names Mt. Belknap draba and Tushar Mountain draba. It is endemic to Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

, where it is known only from Mt. Belknap in the Tushar Mountains

Tushar Mountains

The Tushar Mountains are the third highest mountain range in Utah after the Uinta Mountains and the La Sal Range. Located in the Fishlake National Forest, Delano Peak, 12,174 ft  NAVD 88, is the highest point in both Beaver and Piute counties and has a prominence of 4,689 ft...

 in Beaver

Beaver County, Utah

As of the census of 2010, there were 6,629 people, 2,265 households, and 1,697 families residing in the county. The population density was 2.56 people per square mile . There were 2,908 housing units at an average density of 1.12 per square mile...

 and Piute Counties

Piute County, Utah

Piute County is a county located in the U.S. state of Utah. The population in 2000 was 1,435, and by 2005 had been estimated to decrease to 1,365. It was named for the Paiute tribe of Native Americans. The county seat is Junction and the largest city is Circleville.-Geography:According to the U.S...

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This small plant has creeping, hairy branches forming a mat of grayish herbage. The gray-green leaves are up to a centimeter long. The inflorescence

Inflorescence

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 is a raceme

Raceme

A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...

 of up to 15 flowers. Each flower has pale yellow petals 3 or 4 millimeters long. Blooming occurs in June through August. The fruit is a flattened oval silique

Silique

A silique or siliqua is a fruit of 2 fused carpels with the length being more than three times the width. The outer walls of the ovary usually separate when ripe, leaving a persistent partition...

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This plant grows on the rocky slopes of a single mountain in south-central Utah. It occurs above the timberline at 3350 to 3660 meters elevation

Elevation

The elevation of a geographic location is its height above a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface ....

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