''Leptosiphon rattanii'' ( syn. ''Linanthus rattanii'') is a rare species of flowering plant in the phlox family known by the common name Rattan's linanthus. It is

endemic Endemism is the state of a species being found only 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 foun ...

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 ...

, where it is known only from inner sections of the

North 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. Phy ...

. It is a small, thin annual herb producing a hairy, glandular stem up to 20 centimeters tall. The leaves are divided into tiny threadlike lobes. The

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 ...

is generally made up of a single flower with a very thin, hairy, reddish tube over a centimeter long tipped with a flat white corolla with lobes a few millimeters in length.

External links

Calflora Database: ''Leptosiphon rattanii'' (Rattan's leptosiphon)Jepson Manual eFlora (TJM2) treatment of ''Leptosiphon rattanii''UC CalPhotos gallery: ''Leptosiphon rattanii''
rattanii Endemic flora of California Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Flora without expected TNC conservation status {{Polemoniaceae-stub