GROWTH FORM OF CAREX BIGELOWII GROWING IN SOUTH- CENTRAL ALASKA (EXTENDED ABSTRACT)
Carex bigelowii is a rhizomatous perennial growing mostly in mountains in the circumpolar region (HULT~N, 1968). Several buds are formed by lateral meristems in the leaf axils on the tillers. Usually only one or two buds will develop into daughter tillers, the rest will remain dormant ( J~NSD~TTIR a...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.526.3925 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1994-Kibe.pdf |
| Summary: | Carex bigelowii is a rhizomatous perennial growing mostly in mountains in the circumpolar region (HULT~N, 1968). Several buds are formed by lateral meristems in the leaf axils on the tillers. Usually only one or two buds will develop into daughter tillers, the rest will remain dormant ( J~NSD~TTIR and CALLAGHAN, 1988). C. bigelowii shows various growth forms among habitats (HuLT~N, 1968). The purpose of this study is to clarify characteristics of the growth form of C. bigelowii with respect to shoot size and rhizome size among habitats. Furthermore, it is to clarify the role of rhizomes and roots as a storage organs for non-structural carbohydrates. The study site was located on the timberline of a mountain at about 650m above sea level near Anchorage in south-central Alaska. The mountain slope was mainly covered by prostrate woody plants, such as Empetrum nigrum, Vaccinium sp. The foot of the slope was covered by mosses, such as Sphagnum sp. There were small stream and wet land vegetation was developing. Some vascular plants such as Eriophorum sp., Carex sp. and Dryas octopetala were also growing there. |
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