Distributions of 40 rare vascular plants in the Alatna River drainage of the central Brooks Range, Alaska
Odasz AM. 1986. Distributions of 40 rare vascular plants in the Alatna River drainage of the central Brooks Range, Alaska. Northwest Science. 60(2):104-107
(Adapted from author's abstract.) Plants were collected in the Alatna River drainage during the summers of 1978, 1981, and 1982. Species occurences were recorded for the eight main tributaries of the upper Alatna drainage. Of the 282 species collected in the drainage, 40 are range extensions. Twenty-two of the 40 species distributions suggest northward post-Pleistocene migration from southern refugia. The habitat preference of Campanula aurita and Cypripedium calceolus subsp. parviflorum for dry south-facing limestone outcrops suggests possible survival as part of the Pleistocene steppe tundra flora.
- Type
- Journal Article
- Authors
- Odasz, Ann
- Units
- GAAR
- Keywords
- Alatna River drainage, Distribution, Gates Of The Arctic National Park And Preserve, Habitat, Phytogeography, Plants, Survey Pass quadrangle, Vegetation