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Specimen number UCD65952
Determination Ludwigia peploides subsp. montevidensis
More information: Jepson Online Interchange
Collector, number, date B. J. Grewell, 06- 71 -LU, 2006-9-19
Verbatim date 19 Sep 2006
County Napa
Locality Lake Hennessey where reservoir overflow backs up into confluence with Sage Creek south of Hwy 128.
Elevation 97 m
HabitatPalustrine emergent marsh along reservoir shoreline. Ludwigia forms band along high water line and creeps out across shallow water surface. Ludwigia senescent above waterline. Flowers from floating shoot, and from emergent stems erect from primary shoot. -4,-5, and -6 merous flowering shoots present in population. Stand is dominantly L. p. montevidensis, but minor associates include Echinodorus berteroi, Gnaphalium palustre, Eleocharis acicularis. Chromosome count 2n=16, molecular study voucher specimen LKHE-31.
Coordinates 38.48888 -122.34770 BerkeleyMapper [or without layers, here]
DatumNAD27
Coordinate sourceNot recorded
Voucher information
other label numbersDAV178878
verbatim elevation97 m
Annotations and/or
curatorial actions
-1: Ludwigia peploides subsp. montevidensis (Original determination)
current determination (uncorrected): Ludwigia peploides ssp. montevidensis
Comment
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