Nomenclature
Scientific Name:
Epilobium matthewsii Petrie, Trans. & Proc. New Zealand Inst. 53: 369 (1921)
Vernacular Name(s):
Fiordland willowherb
 Description

Tufted herb, with graceful arcuate branches spreading from a central system of rhizomes, with leafy overwintering rosettes. Stems 4–30 cm tall, with lines of short erect hairs on the elevated ridges running down from margins of petioles. Lamina of lf elliptic, 12–30 × 5–15 mm. Floral tube 1–2 mm deep, glabrous or with a few short hairs. Petals white, 5–8 × 4–5.5 mm. Capsules glabrate, 2.5–5 cm long; fruiting pedicel 0.8–2 cm long.

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

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Dec.–Jan.

 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. [Data deficient]
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. [Not Threatened]
Petrie, D. 1921: Descriptions of new native flowering-plants, with a few notes. Transactions and Proceedings of the New Zealand Institute 53: 365–371.
Raven, P.H.; Raven, T. E. 1976: The Genus Epilobium (Onagraceae) in Australasia: a Systematic and Evolutionary Study. New Zealand Department of Scientific and Industrial Research Bulletin 216: 1–321.