Lathyrus polyphyllus
Encyclopedia
Lathyrus polyphyllus is a species of wild pea
Lathyrus
Lathyrus is a genus of flowering plant species known as sweet peas and vetchlings. Lathyrus is in the legume family Fabaceae and contains approximately 160 species. They are native to temperate areas, with a breakdown of 52 species in Europe, 30 species in North America, 78 in Asia, 24 in...

 known by the common name leafy pea. It is native to the western 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...

, where it grows in forest and other habitat. This is a perennial herb with long leaves each made up of many pairs of oval-shaped leaflets a few centimeters long. The leaf also has tendril
Tendril
In botany, a tendril is a specialized stem, leaf or petiole with a threadlike shape that is used by climbing plants for support, attachment and cellular invasion by parasitic plants, generally by twining around suitable hosts. They do not have a lamina or blade, but they can photosynthesize...

s which may be long, branched and coiled, or just a short bristle. The stipule
Stipule
In botany, stipule is a term coined by Linnaeus which refers to outgrowths borne on either side of the base of a leafstalk...

s are large as well, often over a centimeter wide. The plant produces an 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...

 of up to 12 pea flowers usually arranged in a line along one side of the stem. The flowers are up to 2 centimeters wide and are a variety of shades of purple. The fruit is a dehiscent
Dehiscence (botany)
Dehiscence is the opening, at maturity, in a pre-defined way, of a plant structure, such as a fruit, anther, or sporangium, to release its contents. Sometimes this involves the complete detachment of a part. Structures that open in this way are said to be dehiscent...

legume pod containing peas.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK