| Equisetum silvaticum L. | |||
| |||
| Family | Equisetaceae — APG family: Equisetaceae | ||
| Description | Rhizome dark, creeping; stems of fertile spring phase brownish, 3—4 mm thick, with tubercles at base of sheaths soon developing into branches with inflated and upward-flaring sheaths, the sheaths with membranous, brownish, often coherent teeth; cone obtuse, long-peduncled, soon withering. Sterile stems green, with thin- ner, essentially simple or forking branches, at first recurving and later spreading; sheaths similar to those of fertile stems. | ||
| Ecology | Lowland forests up to subalpine region. Described from North Europe. | ||
| Taxonomy notes | In Alaska, typical specimens have scabrous branches, but specimens with smooth branches (var. pauciramosum Milde) also occur. |
This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.