perehia
1. (noun) New Zealand wind grass, Lachnagrostis filiformis - common throughout Aotearoa/New Zealand in coastal to subalpine open situations and often found as an urban weed, especially in waste land around puddles and in muddy ground. Common around lakes, and fringing ponds, streams and on wetland margins. Slender, upright, tufted, light to yellow green, annual or short-lived perennial grass up to 700 mm tall.
2. (noun) sand wind grass, Lachnagrostis billardierei subsp. billardierei - a native mainly coastal grass on sand dunes, cobble and boulder beaches, on cliff faces, in free draining sites alongestuarine river banks, and fringing coastal ponds and lagoons. Sometimes on limestone or calcareous sandstone bluffs well inland. Stiffly tufted, glaucous to bluish-green perennial grass, 100-600 mm tall. Flowers August - February and fruits December - June.
