Ruppia spiralis L.
FamilyPotamogetonaceae — APG family: Ruppiaceae
SynonymsRuppia occidentalis S. Wats.
Common nameditch grass
DescriptionStem capillary, branched; leaves submerged, linear-capillary, with membranous sheaths; peduncles long, spiraling; fruit pear-shaped, about 2 mm long, tipped by straight style.
EcologySalt and brackish water.
Since submerged plants of the seacoast are rarely collected, it seems probable that this species is common along southern coast of Alaska, though few collections have been taken. Broken line on circumpolar map indicates range of closely related R. maritima L. var. léngipes Hagstr.
Hultén's Flora About

This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.