Salvinia molesta D.S.Mitch.
Family: Salviniaceae
helecho flotador
Salvinia molesta image
Barry Rice  
STEMS: with dense dark multicellular hairs. FLOATING LEAVES: 0.8-3.0 cm long, the blade elliptic-ovate to oblong-ovate and relatively flat in young plants, oblong-ovate to suborbicular and somewhat folded along the midrib in mature plants, shallowly notched at the tip, cordate at the base, the venation obscure, the adaxial trichomes to 2 mm long (Fig. 2), the 4 apical branches fused at the tip, creating the impression of an egg-beater or cage. SPOROCARPS: in chain-like clusters of 6-35 along “branches” of the submerged leaf blade, the proximal 1 or 2 slightly longer-stalked and megasporangiate, the remainder microsporangiate, 1.2-2.2 mm long, ovoid, narrowed to a short beak-like tip, pubescent with hairs similar to those of the submerged leaf. SPORANGIA: empty or the spores abortive and collapsed. 2n = 45. NOTES: Backwaters of the Colorado River and canals, floating aquatic in still or slow-moving water, occasionally stranded on mud: La Paz and Yuma cos. (Fig. 1); 20-100 m (60-300 ft); native of s Brazil, naturalized in regions with warm climates nearly SUBMERGED LEAVES: 1.5-6.0 cm long, short-petiolate, the root-like blade with numerous branches mostly near the base, with dense dark multicellular hairs. REFERENCES: Yatskievych, G. and M.D. Windham. 2008. Vascular Plants of Arizona: Salviniaceae. CANOTIA 4 (2): 46-49
Salvinia molesta image
Barry Rice  
Salvinia molesta image
Barry Rice  
Salvinia molesta image
Barry Rice  
Salvinia molesta image
Barry Rice  
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image
Salvinia molesta image