Nomenclature
Scientific Name:
Epilobium pycnostachyum Hausskn., Österreichische Botanische Zeitschrift 29: 150 (1879)
 Description

Herb with very deep taproot. Stems 4–18 cm tall, branched at base, and sometimes also above, purplish black or green, with dense strigillose hairs in lines running down from margins of petioles. Lamina of lf narrowly oblanceolate or oblanceolate, 6–15 × 2–5 mm. Floral tube 0.7–1.6 mm deep, glabrous. Petals white, 4.2–8 × 2.2–3.5 mm. Capsules 1–2.4 cm long, glabrous, subsessile.

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

 Biostatus
Indigenous (Endemic)
 Phenology

Flowering: Dec.–Jan.

 Bibliography
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. [Not Threatened]
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]
Österreichische Botanische Zeitschrift
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.