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Hairy Lotus
Acmispon strigosus

About Hairy Lotus (Acmispon strigosus) Lotus strigosus is a species of legume known by the common name strigose bird's-foot trefoil. It is native to the southwestern United States and adjacent Mexico, where it is known from many types of habitat, including disturbed areas. This is a prostrate annual herb. It is sometimes roughly hairy as its name suggests, but it may be somewhat woolly, fuzzy, or nearly hairless as well. Its slender branches are lined with leaves each made of several small leaflets. The flower cluster bears one or two yellow to orange or red pealike flowers, each with a corolla one half to one centimeter across. The fruit is a legume pod 1 to 3 centimeters long.
Plant Description
Plant Type
Annual herb

Max. Height
0.1 - 1.6 ft (0.03 - 0.49 m)

Flower Color
Yellow, Orange, Red

Native Status

Natural Setting

Elevation ?
-247' - 6993'

Annual Precip. ?
2.8" - 57.4"

Summer Precip. ?
0.14" - 3.08"

Coldest Month ?
32.5° F - 62.6° F

Hottest Month ?
57.2° F - 88.3° F

Humidity ?
0.41 vpd - 40.14 vpd

Landscaping Information
Nursery Availability
Available Through Seed Stores, Rarely Available

Other Names
Common Names
Bishop's Lotus, Strigose Bird's-foot Trefoil, Strigose Bird's-foot-trefoil

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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