| Epilobium glabellum | |
|---|---|
 | |
| Epilobium glabellum in Fiordland National Park | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Onagraceae |
| Genus: | Epilobium |
| Species: | E. glabellum |
| Binomial name | |
| Epilobium glabellum | |
Epilobium glabellum, or willowherb, is a species of flowering plant, endemic to New Zealand. [2]
Epilobium glabellum can grow as a small bush or in mats, with many stems coming from a single taproot. The stems themselves can be hairy, but the capsules and floral tubes are glabrous. [3] The leaves are close-set and opposite along most of the stem, and sometimes overlapping, with tiny margins. [4]
The flowers are white, [2] purple or pink after pollination and appear from November to May. [3] The seeds are anemochorous, meaning dispersed by the wind, [5] possibly from sites as far as 50 km away. [6]
Epilobium glabellum is known from the North and South Island. [7] It can grow on stony ground at altitude near glaciers. [8] They are early colonisers of screefields. [9] [10]
Epilobium glabellum has three distinct forms, which are thought to have evolved for specific habitat usage. These forms have at times led to multiple descriptions of E. glabellum. [11]
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