''Leptosiphon bolanderi'' ( syn. ''Linanthus bolanderi'') is a species of flowering plant in the phlox family known by the common name Bolander's linanthus.

Distribution

The plant is native to the

West Coast of the United States The West Coast of the United States, also known as the Pacific Coast and the Western Seaboard, is the coastline along which the Western United States meets the North Pacific Ocean. The term typically refers to the Contiguous United States, contig ...

, from in elevation. In

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

it is native to the

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 Northern

California Coast Ranges The Coast Ranges of California span from Del Norte County, California, Del Norte or Humboldt County, California, south to Santa Barbara County, California, Santa Barbara County. The other three coastal California mountain ranges are the Trans ...

, in

chaparral Chaparral ( ) is a shrubland plant plant community, community found primarily in California, southern Oregon, and northern Baja California. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intens ...

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 c ...

, 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 British Columbia to Durango, Mexico. In the south and east, ponderosa pine forest is the climax ...

habitats.

Description

''Leptosiphon bolanderi'' is an annual herb producing a hairy, threadlike stem no more than about 20 centimeters tall. The oppositely arranged leaves are each divided into very narrow needlelike lobes just a few millimeters long. The tip of the stem has an

inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a mai ...

of usually a single flower with a tubular purple or pink throat tinted yellow inside and enclosed in glandular

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' ...

s. The corolla has white or pink lobes a few millimeters wide. The bloom period is from March to July, depending on elevation and latitude.

External links

Calflora Database: ''Leptosiphon bolanderi'' (Bolander's linanthus)Jepson Manual eFlora (TJM2) treatment of ''Leptosiphon bolanderi''UC CalPhotos gallery: ''Leptosiphon bolanderi''
bolanderi Flora of California Flora of Oregon Flora of Washington (state) 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