Roadless Areas
Home/Species/ Marsh Milkvetch

Astragalus pycnostachyus

Gray

Marsh Milkvetch

G2Imperiled Found in 4 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
PSESA Status
Identity
Unique IDELEMENT_GLOBAL.2.133557
Element CodePDFAB0F7B0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusAstragalus
USESAPS
Other Common Names
marsh milkvetch (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Review Date2002-10-09
Change Date2002-10-09
Ecology & Habitat

Habitat

A. p. var. pycnostachyus: Coastal (or slightly inland) wetland habitats, including salt marshes (within reach of high tide or protected by barrier beaches, sometimes along upper marsh edge), salt flats, banks of creeks and streams opening into the ocean, seeps on sandy ocean bluffs, and moist depressions behind dunes. 0 - 30 m. A. p. var. lanosissimus: Historically probably occurred on open sites near the coast on soils with a high water table, such as on bluffs or flats near seeps or bodies of brackish or fresh water, or in or near coastal marshes. Plant communities were probably Coastal Shrubland, Coastal Dune, and/or Salt/Brackish Marsh. Currently, a population occurs on an abandoned oil-field waste site. This area has an artificially compact substrate of clay, sand, and small gravel, above a contaminated water table that lies 3 - 5 feet below the surface. 0 - 30 m.
Terrestrial Habitats
Shrubland/chaparralSand/dune
Palustrine Habitats
HERBACEOUS WETLANDRiparian
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaSNRYes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (4)
California (4)
AreaForestAcres
DiableLos Padres National Forest19,597
MonoLos Padres National Forest28,141
Santa CruzLos Padres National Forest21,182
TequepisLos Padres National Forest9,080
References (10)
  1. Barneby, R.C. 1964. Atlas of North American Astragalus. 2 Vols. New York Botanical Garden, Bronx, New York. 1188 pp.
  2. Best, C., J.T. Howell, W. Knight, I. Knight, and M. Wells. 1996. A flora of Sonoma County: Manual of the flowering plants and ferns of Sonoma County, California. California Native Plant Society, Sacramento. 347 pp.
  3. CalFlora. 2005. Information on California plants for education, research and conservation. Berkeley, California: The CalFlora Database [web application]. Available: http://www.calflora.org/. (Accessed 2005)
  4. California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
  5. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  6. Howell, J.T. 1949. Marin flora: Manual of the flowering plants and ferns of Marin County, California. 1st edition. Univ. Calif. Press, Berkeley.
  7. Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii). Monte L. Bean Life Science Museum, Brigham Young University; MLBM Press, Provo, Utah. 1007 pp.
  8. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  9. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
  10. Thomas, J.H. 1961. Flora of the Santa Cruz Mountains of California: a manual of the vascular plants. Stanford Univ.Press, Stanford, California. 434 p.