''Leptosiphon filipes'' (

syn. The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linna ...

''Linanthus filipes'') is a species of flowering plant in the phlox family known by the common name thread linanthus.

Distribution

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 els ...

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 ...

, primarily in the foothills of the western

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primari ...

, and also the Inner Northern

California Coast Ranges The Coast Ranges of California span from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains. Ph ...

. It is found below , in

oak woodland An oak woodland is a plant community with a tree canopy dominated by oaks (''Quercus spp.''). In terms of canopy closure, oak woodlands are intermediate between oak savanna, which is more open, and oak forest, which is more closed. Although the ...

, grassland, and

Yellow pine forest Ponderosa pine forest is a plant association and plant community dominated by ponderosa pine and found in western North America. It is found from the Rocky Mountains to the Pacific Coast Ranges in the Western United States and Western Canada. In ...

habitats.

Description

''Leptosiphon filipes'' is a petite annual herb producing a threadlike stem up to 20 centimeters long. The oppositely arranged leaves are each divided into linear lobes just a few millimeters long. The

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. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed ...

at the tip of the stem is generally composed of a single tiny flower a few millimeters wide. It is pink or white with a yellow throat. The bloom period is April to July.

External links

Calflora Database: ''Leptosiphon filipes'' (Thread linanthus)Jepson Manual eFlora (TJM2) treatment of ''Leptosiphon filipes''UC CalPhotos gallery: ''Leptosiphon filipes''
filipes Endemic flora of California Flora of the Sierra Nevada (United States) Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Flora without expected TNC conservation status {{Polemoniaceae-stub