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Lemmon's Milkvetch Back to Plant Page
Astragalus lemmonii

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About Lemmon's Milkvetch (Astragalus lemmonii) Astragalus lemmonii, the Lemmon' milkvetch, is a rare plant of eastern California. It is a member of the bean family, the Leguminosae (a. k. a. Fabaceae), and specifically a member of the subfamily Papilionoideae (a. k. a. Faboideae). The genus Astragalus is a large genus within this family; members of this genus are known as milkvetches or locoweeds. Close relatives of this particular species include Astragalus peckii and Astragalus lentiformis. The plant is a perennial plant. It has a fleshy to woody taproot, loosely matted to open and widely branched, herbage green but sparsely strigose, with basifixed hairs. Its several stems are slender and radiates from a superficial root-crown, prostrate to procumbent, herbaceous to the base, 10-50 cm, very sparsely strigose, floriferous from near the base. The stipules submembranous, semi- or fully amplexicaul but free, 2-5 mm. The leaves measures 1-4 cm. Leaflets are 7-15, narrowly elliptic, lanceolate to oblong to oblanceolate; tips acute, subacute, or exceptionally emarginate; sparingly appressed-pubescent, 2-11 mm. The terminal leaflet is generally much broader than the subfiliform rachis. Inflorescence. The inflorescences are several and are often paired in the axils. These are distal, often 2 or 3 in one axil, one raceme of each pair usually developing much sooner than the other. The peduncles are slender, filiform, incurved-ascending at anthesis, mostly 1-2 cm long (much shorter than the leaves). Several (2-13) flowers are clustered at the ends of the peduncles. These flowers are ascending in subcapitate racemes.
Plant Description
Plant Type
Perennial herb

Max. Height
0.33 - 1.6 ft (0.1 - 0.49 m)

Flower Color

Native Status
Natural Setting
Elevation ?
3324' - 9567'

Annual Precip. ?
9.8" - 31.4"

Summer Precip. ?
0.77" - 1.98"

Coldest Month ?
27.7° F - 35.6° F

Hottest Month ?
51.1° F - 65.6° F

Humidity ?
1.07 vpd - 19.33 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Milkvetches, Locoweeds

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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