carex hartmanii, carex hartmaniorum, inflorescences of sedge growing in a wet meadow, poland, europe

biodiversity carex buxbaumii hartmanii hartmaniorum cyperaceae europe molinietalia caeruleae poland biology blooming bogs botany calcareous fens ecology female flower green habitat inflorescence male marshes meadow nature perennial plant plants rare rhizomes species spike spikes spring vegetation wet flowering belonging family inflorescences sedge growing water conditions grass-like