California Native Plant Society
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Nemacladus ramosissimus
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Smallflower Threadplant
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Nemacladus ramosissimus

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About Smallflower Threadplant (Nemacladus ramosissimus) Nemacladus ramosissimus is a species of flowering plant in the bellflower family known by the common name smallflower threadplant. It is native to the mountains and deserts of the southern half of California and adjacent parts of Baja California. It is a small annual herb producing a thread-thin erect brown or purplish stem up to about 32 centimeters tall. Lobed oval leaves under 2 centimeters long occur at the base of the plant. The inflorescence is a series of branches bearing occasional flowers on thin, curving pedicels. There is a single small bract at the base of each pedicel. The flower is no more than 2 millimeters long with five white lobes fused along the lower half.
Plant Description
Plant Type
Annual herb

Max. Height
1.1 ft (0.34 m)

Native Status

Natural Setting
Elevation ?
-122' - 7432'

Annual Precip. ?
3.1" - 46.1"

Summer Precip. ?
0.16" - 2.95"

Coldest Month ?
38.1° F - 59.1° F

Hottest Month ?
59.4° F - 89.2° F

Humidity ?
0.73 vpd - 39.61 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

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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