A Natural Areas Inventory of the - Kansas Natural Heritage Inventory ...

plants (including all infraspecific taxa) previously undocumented in Leavenworth County.
Survey work during the 2003 field season yielded specimens representing 4 families, 12 genera,
51 species, and 54 taxa previously undocumented on FLMR. A revised list of the vascular flora
of the county and the installation is presented as Appendix C. A total of 113 families, 421
genera, 832 species, and 853 taxa are reported from Leavenworth County. Of this number, 103
families (91% of the total flora of the county), 325 genera (77%), 585 species (70%), and 591
taxa (69%) have been documented on FLMR.
The 10 families reported by Freeman et al. (1997) as comprising the most taxa are retained after
the 2003 field season, although several families have changed rank (Table 4.2). Poaceae,
reported here as comprising the largest number of taxa, was reported by Freeman et al. (1997) as
second to Asteraceae; Rosaceae, reported here as comprising the seventh largest number of taxa,
is reported here as fifth, followed by Brassicaceae (sixth) and Lamiaceae (seventh). These ten
families cumulatively account for 475 (57%) of the taxa known in the county and 335 (57%) of
the taxa known on FLMR.
TABLE 4.2. Number of taxa and cumulative percentage of the 10 most species-rich vascular
plant families known from Leavenworth County and FLMR. Cumulative % = cumulative
percent of taxa relative to totals reported for county (853) and FLMR (591).
Family Leavenworth Co Cumulative % FLMR Cumulative %
Poaceae 111 13 76 13
Asteraceae 111 26 73 25
Cyperaceae 64 34 50 34
Fabaceae 45 39 30 39
Rosaceae 30 42 27 43
Brassicaceae 30 46 21 47
Lamiaceae 26 49 21 50
Polygonaceae 22 51 13 53
Apiaceae 18 54 12 55
Scrophulariaceae 18 57 12 57
Provenance. Based on the provenance data presented in Appendix C, floristic work since 1997
has resulted in little change in the percentage of native/non-native taxa documented for
Leavenworth County and FLMR (Freeman et al. 1997) (Table 4.3). The percentage of native taxa
reported here for the installation has remained stable, despite the increase in number of
documented taxa. Populations of exotic species cited by Freeman et al. (1997) as having become
established on the installation have also either remained stable, or apparently increased in
abundance. Several species, including Berberis thunbergii DC. (Berberidaceae; Japanese
barberry), Elaeagnus umbellata Thunb. (Elaeagnaceae; autumn-olive), and Ligustrum
obtusifolium Sieb. & Zucc. (Oleaceae; border privet, previously reported as Ligustrum vulgare),
NATURAL AREAS INVENTORY OF FT. LEAVENWORTH II 81