scouring rush (equisetum hyemale) plant in a wetland

adventure agriculture aquatic beautiful beauty bog brown clear common cone conservation creek disturbed ditch environment environmental equisetum field flowering head hike horestail hyemale invasive lake leaf leaves marsh national oregon park partially pathway pest plant plants pond preserve refuge reproductive rough rush scouring seaweed southern spores sprouting stalk stick submerged toxic traveler tropical vegetation wet wetland wetlands wild wilderness yellow