The bog vegetation is generally dominated by purple moor-grass ( Molinia caerulea ) and black bog-rush ( Schoenus nigricans ) while the blanket bog pools are characterised by a sparse flora which includes bog bean ( Menyanthes trifoliata ), many-stemmed spike-rush ( Eleocharis multicaulis ) and pipewort ( Eriocaulon aquaticum ).
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For example, Cryan's buckmoth ( " Hemileuca maia " ) feeds only on the herb " Menyanthes trifoliata ", commonly known as buckbean, and while indistinguishable morphologically from related buckmoths, and not differentiated at the genetic markers tested, the moth is highly adapted to its host plant, having 100 % survivorship on " Menyanthes ", while close genetic relatives all died when reared on the plant.
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An example is myrtle-of-the-river ( " Calyptranthes zuzygium " ), found in hammocks in the upper Florida Keys, in a few scattered hammocks in the southern portion of the Miami Rock Ridge, and in a few hammocks near Flamingo in Everglades NP . Other species, such as joewood ( " Jacquinia keyensis " ) and inkwood ( " Hypelate trifoliata " ), are found primarily in hammocks in the Florida Keys, but are also found outside of that area in other communities ( " e . g . ", pine rockland, maritime hammock, and Keys buttonwood wetlands ).
