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Long Valley Milkvetch Back to Plant Page
Astragalus johannis-howellii

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About Long Valley Milkvetch (Astragalus johannis-howellii) Astragalus johannis-howellii is a species of milkvetch known by the common name Long Valley milkvetch. It is native to eastern California, including Long Valley in Mono County, and its distribution extends over the border into Nevada. It is a plant of Great Basin scrub habitat. This is a small perennial herb forming loose clumps of very thin branching stems up to 20 centimeters long. The leaves are a few centimeters long and are made up of many tiny folded oval-shaped leaflets. The inflorescence holds 6 to 12 off-white pale-striped flowers, each a few millimeters long. The fruit is a hanging legume pod up to a centimeter in length, thinly hairy and papery in texture. This species was named for the botanist John Thomas Howell.
Plant Description
Plant Type
Perennial herb

Flower Color

Native Status
Natural Setting
Elevation ?
6824' - 8338'

Annual Precip. ?
9.5" - 14.2"

Summer Precip. ?
0.85" - 1.65"

Coldest Month ?
26.9° F - 30.2° F

Hottest Month ?
54.8° F - 62.2° F

Humidity ?
1.05 vpd - 18.74 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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