Common Name: FLOATING-FERN or WATER-SPANGLE FAMILY Habit: 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. Sporangium Case: few to many; sporangia many per case; spores 32 or 64 per sporangium, spheric, in hard mass. 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. Genera In Family: 1 genus, +- 10 species: +- worldwide, generally tropics. Note: Closest relatives of Azollaceae. In California, probably all are escapes from cultivation, aquaria, reproducing vegetatively (fertile material documented in California only for Salvinia minima). eFlora Treatment Author: Bruce G. Baldwin Scientific Editor: Thomas J. Rosatti.
Citation for this treatment: Bruce G. Baldwin 2012, Salvinia molesta, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=43117, accessed on April 23, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 23, 2024.
Geographic subdivisions for Salvinia molesta:
SCo, DSon (Colorado River)
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(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).
Data provided by the participants of the
Consortium of California Herbaria.
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