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Document Type

Research

Keywords

Allamakee County Aora, Driftless Area Aora, Endangered Plant Species, Iowa Vascular Aora, Threatened Plant Species

Abstract

Based upon field and herbarium study, the vascular flora of Allamakee County is composed of 1040 taxa (species plus hybrids), including 46 endangered and 23 threatened Iowa species. This number represents approximately 50% of the species in the state flora and is the greatest number of taxa documented for a single Iowa county. The large and diverse flora reflects the diversity of topography and habitat types within the county. The study resulted in the addition of four taxa to the state flora (Conopholis americana, Dryopteris X triploidea, Equisetum X litorale, and Polygonum douglasii) and in the location of populations of two species previously considered extirpated within the state (Dryopteris intermedia and Ilex verticillata).

Publication Date

June 1980

Journal Title

Proceedings of the Iowa Academy of Science

Volume

87

Issue

2

First Page

62

Last Page

75

Copyright

© Copyright 1980 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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