Draba pterosperma
Encyclopedia
Draba pterosperma is an uncommon species of flowering plant in the mustard family
known by the common name wingedseed draba. It is endemic to Siskiyou County, California
, where it is known only from the Marble and Salmon Mountains
of the Klamath Range
. It is a small perennial herb forming dense mats or cushions of hairy, oval-shaped leaves each no more than a centimeter long. The erect inflorescence
bears several white flowers which yield flat oval-shaped silique
s containing winged seeds.
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 name wingedseed draba. It is endemic to Siskiyou County, California
Siskiyou County, California
Siskiyou County is a county located in the far northernmost part of the U.S. state of California, in the Shasta Cascade region on the Oregon border. Yreka is the county seat. Because of its substantial natural beauty, outdoor recreation opportunities, and Gold Rush era history, it is an important...
, where it is known only from the Marble and Salmon Mountains
Salmon Mountains
The Salmon Mountains are a mountain range in Siskiyou County, California and a sub-range of the Klamath Mountains....
of the Klamath Range
Klamath Mountains
The Klamath Mountains, which include the Siskiyou, Marble, Scott, Trinity, Trinity Alps, Salmon, and northern Yolla-Bolly Mountains, are a rugged lightly populated mountain range in northwest California and southwest Oregon in the United States...
. It is a small perennial herb forming dense mats or cushions of hairy, oval-shaped leaves each no more than a centimeter long. The erect 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...
bears several white flowers which yield flat oval-shaped 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...
s containing winged seeds.