Oenanthe sarmentosa- water-parsley
Climate, elevation: Found in low to middle elevations. (Pojar, 1995)
Local occurrence: Common throughout range. (Pojar, 1995)
Habitat preferences: In wet soils, along streams and marshes. (Pojar, 1995)
Plant strategy type/successional stage: Tolerates sun or shade, can spread vegetatively. (Jacobson, 2001)
Associated species: Found growing with Typha latifolia and Lysichiton americanum. (Guard, 1995)
May be collected as: seed (Young, 2001), or vegetative cutting.
Collection restrictions or guidelines: Blooms mid June to August. (Guard, 1995) Collect seeds between August and September when flowers are mature and brown in color. (Young, 2001)
Seed germination: Soak for 24hrs and follow with 21-30 days of cold stratification. Seeds will germinate within 30 days. Average germination rate is 50%. (Young, 2001)
Seed life: Not specified
Recommended seed storage conditions: Keep moist and store in refrigerator. (Young, 2001)
Propagation recommendations: Propagation by seeding is recommended.(Young, 2001) Cuttings of rooted nodes may be transplanted.
Soil or medium requirements: Use standard potting mix, lightly cover seeds. (Young, 2001)
Installation form: Not specified
Recommended planting density: Not specified
Care requirements after installed: Not specified
Normal rate of growth or spread: Semi-aquatic perennial (Jacobson, 2001) rapidly produces considerable above ground biomass. Stems may grow to over 3ft. (Spear Cooke, 1997)
Jacobson, A.L. (2001). Wild Plants of Greater
Pojar, J., MacKinnon, A.
(1994). Plants of the
Spear Cooke, S. (1997). A
Field Guide to the Common Wetland Plants of
Young, Betty. (2001).
Propagation protocol for production of container Oenanthe
plants; Golden Gate National Parks,
Photo on far left retrieved from http://www.calflora.net/bloomingplants/pacificoenanthe.html Taken by Michael L. Charters.
Other photos taken by Jennifer Boardman
Data compiled by: Jennifer Boardman