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Bristly Leptosiphon
Leptosiphon acicularis
About Bristly Leptosiphon (Leptosiphon acicularis) 0 Nurseries Carry This Plant Leptosiphon acicularis (syn. Linanthus acicularis) is a species of flowering plant in the phlox family known by the common names bristly linanthus and bristly leptosiphon. The plant is endemic to northern California in the California Coast Ranges, from the San Francisco Bay Area northwards. It is a found below 700 metres (2,300 ft) in chaparral, oak woodland, and coastal prairie habitats. It is a California Department of Fish and Wildlife and IUCN listed Vulnerable species, and is on the California Native Plant Society Inventory of Rare and Endangered Plants. Leptosiphon acicularis is an annual herb producing a hairy stem no more than about 15 centimeters tall. The oppositely arranged leaves are each divided into very narrow bristlelike lobes up to a centimeter long. The tip of the stem has an inflorescence of one or more tiny yellow flowers surrounded by many needlelike sepals. The bloom period is April to May.
Plant Description
Plant Type
Plant Type
Annual herb

1.2 - 5.9 in tall

Flower Color
Flower Color

Landscaping Information
Natural Setting
Annual Precipitation: 22.3" - 88.6", Summer Precipitation: 0.27" - 2.49", Coldest Month: 37.8" - 49.3", Hottest Month: 54.9" - 74.4", Humidity: 0.09" - 23.49", Elevation: 20" - 6846"

Alternative Names
Common Names: Bristly Deserttrumpets, Bristly Linanthus

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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