Calamagrostis acutiflora wani nau'in ciyawa ne wanda ke cikin dangin Poaceae. Ana kuma san shi da ciyawar ciyawa mai kaifi ko kaifi-flowered calamagrass. Kalmar "Calamagrostis" ta fito ne daga kalmomin Helenanci "kalamos" ma'ana "reed" da "agrostis" ma'ana "ciyawa". Takamaiman ma'anar "acutiflora" ta samo asali ne daga kalmomin Latin "acuti" ma'ana "kaifi" da "flora" ma'ana "flower", kuma yana nufin ƙayyadaddun furanni masu kaifi waɗanda ke da halayen wannan nau'in.