Directory       News       Site Map       Home
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Previous taxon


Bruce G. Baldwin

Free-floating aquatic; roots 0. Stem: horizontal. Leaf: in groups of 3 along stem, each group of 2 floating leaves, 1 submersed; floating leaves simple, ± sessile or short-petioled, generally ovate to cordate, entire, notched at tip or not, green, hairy, hairs water-repellent on upper face; submersed leaf dissected, root-like, generally petioled, ± white, hairy. Sporangia: in ± spheric, indehiscent cases of 2 kinds, submersed, on axes in chain-like arrangements or on leaves. Male sporangium case: few to many; sporangia many per case; spores 32 or 64 per sporangium, spheric, in hard mass. Female sporangium case: 1–few, basal; sporangia few per case; spore 1 per sporangium, spheric.
1 genus, ± 10 species: ± worldwide, generally tropics. Closest relatives of Azollaceae. In California, probably all are escapes from cultivation, aquaria, reproducing vegetatively (fertile material documented in California only for Salvinia minima). —Scientific Editor: Thomas J. Rosatti.

(A.M. Salvini, Italian botanist, 1633–1729) [Riefner & Smith 2009 J Bot Res Inst Texas 3:855–866]

Key to Salvinia

S. molesta D.S. Mitch.
Leaf: floating blade generally 15–25 mm, ± round, length < 1.5 × width, papillae on upper face <= 1 mm, hairs on papillae joined into dark knot at tips.
River channels, backwaters, floodplain ponds; generally < 100 m. South Coast, Sonoran Desert (Colorado River); ± worldwide in tropics; native to Brazil. {Noxious weed} [Online Interchange]
Unabridged note: Possibly of recent hybrid origin.

Previous taxon: Salvinia minima
Next taxon: Salvinia oblongifolia


Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 27 2015
Citation for this treatment: [Author of taxon treatment] 2013. Salvinia, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 27 2015

Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.

click for enlargement Salvinia molesta
See CalPhotos for additional images
2009 Barry Rice

Geographic subdivisions indicated for the distribution of Salvinia molesta Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records


CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.