The New Zealand Plant Conservation Network

Species

Myosotis angustata

Etymology

Myosotis: mouse-eared
angustata: Narrowed

Common Name(s)

None known

Current Conservation Status

2012 - Threatened - Nationally Critical

Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB

Previous Conservation Status

2009 - Threatened - Nationally Critical
2004 - Threatened - Nationally Critical

Qualifiers

2012 - RR, St
2009 - St, OL

Authority

Myosotis angustata Cheeseman

Family

Boraginaceae

Flora Category

Vascular - Native

Structural Class

Dicotyledonous Herbs other than Composites

Synonyms

None

Distribution

Endemic. South Island, North West Nelson, Kahurangi National Park, Mt Arthur.

Habitat

Alpine. On shaded marble outcrops and associated talus.

Features

Tufted, perennial, grey-green, rosette forming herb. Rosette-leaves 20 x 4 mm, linear-spathulate, apex sub acute. Leaf-hairs coarse, of two types, small and long, these usually appressed, overlapping. Lateral branches few, ascending to erect, up to 150 mm long in fruiting specimens, internodes < leaves. Stem-leaves 15-20 x 2-4 mm, linear to narrow-oblong, apex sub acute, hairs as for rosette-leaves. Inflorescence simple, sometimes branched, compact terminal cyme, 10-20 mm long when in flower, elongating to 50 mm when in fruit. Calyx 5-8 mm, lobes cut to half calyx length, sub acute; hairs on lobes long, straight and numerous, towards base changing to long and hooked with an underlayer of short, straight, appressed hairs. Corolla white, 7 mm diam., tube 5-6(-8-10) mm, cylindric, corolla lobes 2.5 x 2.5 mm, broad-oblong; filaments fixed between small scales, about length of anthers.

Similar Taxa

Could be confused with M. traversii Hook.f. (var. traversii and var. cantabrica L.B.Moore). These have their anthers partly included within the corolla-tube, while the hairs on the undersurfaces of the rosette leaves are retrorse, and the long hairs of the calyces are all or almost all hooked. M. traversii var. traversii is known from scree in Kahurangi National Park.

Flowering

December - February

Flower Colours

White

Fruiting

January - April

Propagation Technique

Difficult. Should not be removed from the wild.

Threats

Apparently confined to single location in Kahurangi National Park. At this location although the species appears to be genuinely uncommon, indications are that the population is stable. The species qualifies for Nationally Critical because the total area of occupancy is < 1 ha.

Endemic Taxon

Yes

Endemic Genus

No

Endemic Family

No

This page last updated on 16 Apr 2014