Yellow floating heart
Спампаваць
7.25 Kb.
Дата канвертавання
24.04.2016
Памер
7.25 Kb.
Yellow
floating heart
Nymphoides peltata
(S. Gmelin) Kuntze
Menyanthaceae
Key identifying traits
Heart-shaped floating leaves have wavy margins
and are purplish underneath
Showy, yellow, 5-petaled flowers on stalks that rise a few inches above leaves and water surface
Two to five flowers
arise from each flower stalk
Flower petals are distinctly fringed along edges
Biology
and ecology
A perennial aquatic plant reproducing by seeds and new stolons; broken off leaves with part of a stem attached
can also form new plants
Can form very dense patches, excluding natives species
and creating stagnant areas
Prefers slow moving rivers, lakes,
reservoirs and ponds
Native to Eurasia and the Mediterranean region
Introduced
as an ornamental water plant
Control
We (in WA) have had no direct experience controlling YFH but it is similar in growth habit to the fragrant water lily and it is expected that methods used to manage water lilies would be effective on YFH-
Prevention –
Learn to identify plants
; know your water bodies; don’t transplant these pretty plants to your home
pond or waterfront shorelines
; research nursery and catalogue specimens before buying
Biological –
None known at this time
; crass carp don’t eat water lilies (very similar plants) in WA
Cultural –
Healthy native plant communities help reduce likelihood of establishment but don’t stop it
Mechanical –
Cutting,
harvesting
, covering with bottom barrier materials should work
Chemical –
Aquatic glyphosate may work-permits
and special licenses required
Long Lake, in southern Stevens County, summer 1999.
Where found –
The only known infestation in WA is on the Stevens County border with Spokane in Lake Spokane.
Created by Stevens County
Noxious Weed Control Board
, March 2001; Updated Jan 2004
База данных защищена авторским правом ©shkola.of.by 2016
звярнуцца да адміністрацыі
Галоўная старонка
Guide
Instructions
Report
Request
Review