Myosotis scorpioides var. strigulosa
Vascular – Exotic
Herbs - Dicotyledons other than Composites
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
Low growing herb on wet ground and damp hollows. Leaves are pale green, stems often bend at the base and leaves are willow like. The flowers are small, pale blue with a yellow center.
Margins and ponds, wet hollows.
Wetland plant indicator status rating
FACW: Facultative Wetland
Usually is a hydrophyte but occasionally found in uplands (non-wetlands).
Plants are 20 to 60 cm tall, and often forms new plants at the nodes (stolons). Leaves are narrow, alternate and attached dierctly to the stem and have pointed or rounded tips with a prominent mid-vein. Flowers are 5 to 10 mm wide. The base of the petals forms a tube longer than the length of the petal lobes. Pedicels at fruiting are 1 to 2 times the length of the calyx. Nutlets (4) are black.
Very similar to M. laxa subsp. caespitosa, but the corolla is usualy wider than 4mm.
November to May
Mainly seed dispersal by water movement and animals contaminated with hooked persistent calyx surrounding seed.
Reason for introduction
Ornamental pond and garden plant
Can be controlled manually, mechanically or herbicidally depending on situation.
Factsheet prepared by Paul Champion and Deborah Hofstra (NIWA).
References and further reading
Johnson PN, Brooke PA (1989). Wetland plants in New Zealand. DSIR Field Guide, DSIR Publishing, Wellington. 319pp.
Popay et al (2010). An illustrated guide to common weeds of New Zealand, third edition. NZ Plant Protection Society Inc, 416pp.
WSDE (2001). An aquatic plant identification manual for Washington’s freshwater plants. Washington State Department of Ecology, 195pp.