Bolboschoenus maritimus (L.) Palla / Homotypic Synonyms: Scirpus maritimus L., it is a perennial or helophyte herb, up to 0,4-1,2 m tall, with underground stolons, swollen at the ends into tubers which round inti additional stolons, the rest of the rhizome slender and black in colour. Stem base swollen; stem sharply trigonous, 0,2-1 cm, lower half with green leaf sheaths with brown slightly hairy throat, leaves shorter to longer than stem, blades flat, 2,5-4 cm long, 0,5-1 cm wide, scabrid on keel and margins. Inflorescences 2-3, compound, open, each with 20-50 golden brown to reddish brown spikelets 5-6 mm long; achene sub trigonous, convex-sided, with 3(2) style branches. Achenes medium to dark brown, rarely yellowish or whitish, obovoid, biconvex, or concave-sided, 2.3-4.1 × 1.9-2.8 mm.
Flowering in: Mar-Des.
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