All the seagrasses have horizontal rhizomes, and many species have vertical rhizomes.In some seagrass species, clonal reproduction, via apomict, was also observed.
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- 所有的海草都具有水平根状茎,许多海草也具有垂直根状茎,在一些海草中,也观察到无性生殖(无融合生殖)。