Classification
 Nomenclature
Scientific Name:
Myosotis tenericaulis Petrie, Trans. & Proc. Roy. Soc. New Zealand 50: 209 (1918)
Synonymy:
Type: Edge of Inch Clutha, nr. Romahapa (in open bush), Clutha Co. Otago, Dec. 1891, D. Petrie s.n. (lecto (designated by Moore 1961): WELT SP002689! (A and B sheets); isolecto CHR 295327!).
  • = Myosotis tenuis G.Simpson & J.S.Thomson, Trans. & Proc. Roy. Soc. New Zealand 73: 161 (1943)
Type: Wairoa Gorge, Nelson, open sparely covered sunny slopes, s. dat., G. Simpson & J.S. Thomson s.n.(holo: CHR 75724! (image: CHR 550038!)).
Etymology:
The Latin words tener (soft, delicate) and caulis (stem) which make up the epithet refer to the ‘very thin and flaccid’ inflorescences (Petrie 1918, p. 209).
 Description

Diffuse herb;  branches slender, rooting at nodes, usually rather flaccid.  Lvs elliptic to broadly ovate, on very slender petioles;  hairs short, closely appressed, even and sparse, few abaxially.  Upper lvs > to much > internodes.  Cymes simple or branched, several-flowered;  internodes long;  each fl. opposite its bract.  Calyx hairs stiff, short, closely appressed, even and sparse.  Corolla white to yellowish, 3–4 mm diam.;  tube short, cylindric;  filaments very short; anthers usually wholly included.

[From:  Webb et al. (1988) Flora of New Zealand. Volume 4.]

 Biostatus
Indigenous (Endemic)
 Phenology

Fruiting: Nov.–Mar.

 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Naturally uncommon]
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76.
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series No. 22. [Naturally Uncommon]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Naturally Uncommon]
Meudt, H.M.; Prebble, J.M. 2018: Species limits and taxonomic revision of the bracteate-prostrate group of southern hemisphere forget-me-nots (Myosotis, Boraginaceae), including description of three new species endemic to New Zealand. Australian Systematic Botany 31: 48–105.
Petrie, D. 1918 ("1917"): Descriptions of New Native Flowering-Plants. Transactions and Proceedings of the Royal Society of New Zealand 50: 207–211.
Simpson, G. 1952: Notes on some New Zealand Plants and Descriptions of New Species (No. 5). Transactions of the Royal Society of New Zealand 79: 419–435.
Simpson, G.; Thomson, J. S. 1943: Notes on Some New Zealand Plants and Descriptions of New Species. Transactions and Proceedings of the Royal Society of New Zealand 73: 155–171.