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Astragalus preussii
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Preuss Milkvetch
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Astragalus preussii
  

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About Preuss Milkvetch (Astragalus preussii) Astragalus preussii (common name - Preuss" milkvetch) is an annual or perennial plant in the legume family (Fabaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States. :121Growth pattern. It is an annual or perennial plant from 4 to 15 inches (10 to 38 cm) tall, growing upright from a woody base. :121Leaves and stems. It has compound pinnate leaves from 1 1-2 to 15 inches (3. 8 to 38. 1 cm) long, with 7-25 3-4 inch (1. 9 cm), elliptic leaflets. :121Inflorescence and fruit. It blooms from March to June. :121 The inflorescence has 3-22 flowers per stalk, with a small, green, 5-lobed calyx around a tublular set of white to pink to purple petals, 3-4 inch (1. 9 cm) long. :121 When dried, 3-4 inch (1. 9 cm) seed pods are papery or leathery, elliptical, and are either smooth or covered with soft hairs. :121Habitat and range. It only grows in soils containing Selenium. :121Ecological and human interactions. It is named after Charles Preuss. :121
Plant Description
Plant Type
Perennial herb

Max. Height
0.33 - 1.3 ft (0.1 - 0.4 m)

Flower Color
Pink, White, Purple

Native Status
Native

Natural Setting
Elevation ?
589' - 4975'

Annual Precip. ?
4.3" - 9.7"

Summer Precip. ?
0.35" - 2.24"

Coldest Month ?
41.1° F - 56.1° F

Hottest Month ?
65.3° F - 87.4° F

Humidity ?
4.90 vpd - 38.67 vpd

Landscaping Information
Common uses
Butterfly Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Preuss' Milkvetch


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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