Tupasvilla (Tupellinen niittyvilla) 
Cotton grass – Eriophorum vaginatum –

20–50 cm. Nevoilla, rämeillä. Hyvin yleinen. IV–V. Tiheään mätästävä. Varsien tupet väljät. Tähkä yksinäinen, villa valkea. 

Cotton grass is a native, tussock-forming graminoid. Its culm varies from 20–70cm in length and is sheated to half its length. The acaulescent leaves and scales are tightly compacted. Cotton grass foliage dies back each winter, but basal portions of leaves and stems remain green. The infl orescense is a densely tufted cyme composd of multifl owered spikelets. The fruit is an achene. Fl 5–6. Br Common in marshes.