Distribution: Chiefly west of the Cascades in Washington; Alaska to Washington, east to Northwest Territories and Alberta.
Habitat: Wet meadows, streams and mossy banks in the moungtains
Conservation Status: Not of concern
Perennial herb with unbranched stems to 10 cm tall; from slender creeping rhizomes.
Simple, linear, to 1 cm long, in whorls of 5-8 along stem.
Tiny and inconspicuous, in worls at bases of leaves; mostly imperfect, lacking petals, and with 1 stamen.
Small reddish-green nutlike fruits in whorls at leaf bases.
Look for the delicate plants with narrow whorled leaves and minute flowers. H. vulgaris is a more robust plant with stems more than 1 mm thick and leaves mostly over 1 cm long.