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Cordylanthus tenuis
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Slender Bird's Beak
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Cordylanthus tenuis

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About Slender Bird's Beak (Cordylanthus tenuis) Cordylanthus tenuis is a species of flowering plant in the broomrape family known by the common name slender bird's beak. It is native to the US states of California, Oregon, and Nevada, where it grows in woodland and forest. It erects a spindly stem which may exceed a meter in height with sparse narrow leaves a few centimeters long, and is sometimes sticky with glandular secretions. The plant is greenish and tinted with yellow or purple coloration. The stem branches at intervals and at the end of each branch is a cluster of one to several flowers. Each pocket-shaped flower is one to two centimeters long and about one wide, made up of fuzzy maroon lobes with white or yellow lips. There are several subspecies, including:
Plant Description
Plant Type
Annual herb

Max. Height
3.3 ft (1 m)

Native Status

Natural Setting
Elevation ?
40' - 10161'

Annual Precip. ?
13.1" - 134.9"

Summer Precip. ?
0.28" - 4.74"

Coldest Month ?
26.4° F - 52.0° F

Hottest Month ?
47.3° F - 79.3° F

Humidity ?
0.32 vpd - 25.07 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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