Epilobium pycnostachyum, or scree epilobium,New Zealand Plant Conservation Network. 2002. Vascular Plants of the Kaimanawa Forest Park (60051, NZMS 260 T19, T20 & U19). https://www.nzpcn.org.nz/site/assets/files/0/13/541/plants_of_the_kaimanawa_forest_park.pdf is a species of willowherb that is endemic to New Zealand. It grows exclusively on scree slopes on mountains.
Description A small herb with a few branches that spread out and then up. The leaves are a dull green, and glabrous and have deep teeth on the margins. The flowers are white, or red and pink.
The seeds are wind-dispersed.
Range and habitat Epilobium pycnostachyum is known from both the North and the South Island. It is restricted to mountain ranges, where it grows in scree fields and unstable, rocky environments.
It is not considered threatened.
Etymology Pycnostachyum means 'densely spiked'.
Taxonomy It was described by Heinrich Carl Haussknecht in 1879. The type specimen is from Whitcombe's Pass, on the South Island of New Zealand.
References