Izimpande eziningi ezijwayelekile

I-polyrhiza evamile, igama lesayensi elithi Spirodela polyrhiza. Isatshalaliswa kabanzi endaweni enesimo sezulu esipholile kokubili eNyakatho neNingizimu Nenkabazwe. Ikhula eYurophu ezindaweni ezimile, emanzini angashoni nasezindaweni ezingamaxhaphozi zemifula.

Isetshenziswa njengesitshalo se-aquarium. Kuze kube ngasekuqaleni kwawo-2000, olunye uhlobo lwezilwane lwaluhlinzekwa ngaphansi kwegama elithi Common Rootweed – Spotted duckweed (Landoltia punctata), kamuva eyahlukaniswa yaba uhlobo oluhlukile.

Kubhekwa njengezinhlobo ezinkulu ze-duckweed. Ihlumela liqukethe izingcezu eziyisicaba eziyisicaba/amacembe axhunywe ndawonye njenge-trefoil, ngayinye ecishe ibe ngu-6 mm ububanzi, kuyilapho ihlumela ngokwalo lifinyelela ku-1 cm noma ngaphezulu. Uhlangothi olungenhla luluhlaza, olungezansi lubomvu. Izimpande zilenga phansi kwehlumela, ziqoqwe ngamaqoqo.

Isitshalo kulula ukusinakekela. Ikhula ngokushesha, ikakhulukazi uma amanzi equkethe ama-nitrate amaningi, ama-phosphates ne-potassium. Isidingo sokukhanyisa sisesilinganisweni. Lapho igcinwa ku-aquarium, ukuncishiswa okujwayelekile kuyadingeka, ngaphandle kwalokho indawo engaphezulu izombozwa maduze “ngokhaphethi” oluhlaza.