''Eriogonum viridescens'' is a species of wild buckwheat known by the common name twotooth buckwheat. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

, where it grows in the Central Coast Ranges through the

Transverse Ranges The Transverse Ranges are a group of mountain ranges of southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within Santa ...

and into the

Mojave Desert The Mojave Desert ( ; mov, Hayikwiir Mat'aar; es, Desierto de Mojave) is a desert in the rain shadow of the Sierra Nevada mountains in the Southwestern United States. It is named for the indigenous Mojave people. It is located primarily ...

, as well as in the Central Valley. It grows in a variety of habitat types, generally on

clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay par ...

and sandy soils.

Description

This is a slender annual herb producing flowering stems up to about 30 centimeters tall surrounded at the bases by woolly oval leaves. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

is a wide open array of branches lined with clusters of white or pink flowers. Each flower has lobes only about a millimeter long which are wider at the tips.

External links

Jepson Manual TreatmentPhoto gallery
viridescens Endemic flora of California Flora of the California desert regions Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the Central Valley (California) Natural history of the Mojave Desert Natural history of the Transverse Ranges Flora without expected TNC conservation status {{Polygonaceae-stub