Trifolium macrocephalum
Encyclopedia
Trifolium macrocephalum is a species of clover
known by the common name largehead clover. It is native to the northwestern United States from Washington to northern California
to Idaho
, where it occurs in several types of habitat, including sagebrush
and mountain woodlands. It is a rhizomatous
perennial herb taking an upright form. The herbage is hairy. The leaves are made up of 5 to 9 thick oval leaflets each measuring up to 2.5 centimeters in length. The inflorescence
is a head of flowers up to 5 or 6 centimeters long. Each flower has a calyx of sepal
s with lobes narrowing into bristles which are coated in long woolly hairs. The flower corolla may be nearly 3 centimeters in length and is pink in color, or sometimes bicolored.
Clover
Clover , or trefoil, is a genus of about 300 species of plants in the leguminous pea family Fabaceae. The genus has a cosmopolitan distribution; the highest diversity is found in the temperate Northern Hemisphere, but many species also occur in South America and Africa, including at high altitudes...
known by the common name largehead clover. It is native to the northwestern United States from Washington to northern California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
to Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....
, where it occurs in several types of habitat, including sagebrush
Sagebrush
Sagebrush is a common name of a number of shrubby plant species in the genus Artemisia native to western North America;Or, the sagebrush steppe ecoregion, having one or more kinds of sagebrush, bunchgrasses and others;...
and mountain woodlands. It is a rhizomatous
Rhizome
In botany and dendrology, a rhizome is a characteristically horizontal stem of a plant that is usually found underground, often sending out roots and shoots from its nodes...
perennial herb taking an upright form. The herbage is hairy. The leaves are made up of 5 to 9 thick oval leaflets each measuring up to 2.5 centimeters in length. 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 head of flowers up to 5 or 6 centimeters long. Each flower has a calyx of sepal
Sepal
A sepal is a part of the flower of angiosperms . Collectively the sepals form the calyx, which is the outermost whorl of parts that form a flower. Usually green, sepals have the typical function of protecting the petals when the flower is in bud...
s with lobes narrowing into bristles which are coated in long woolly hairs. The flower corolla may be nearly 3 centimeters in length and is pink in color, or sometimes bicolored.