16 July 2018.
Missouri, United States
Locality: Auxvasse Natural Area located 8.44 miles southeast of Fulton, T46N R8W S 1/4 Sec. 9, Callaway County
Coordinates: 38.7673, -91.8296
(Map it)
Elevation: 205m.
Georeference protocol: Lat/lon determined by GPS
Habitat: Wild Habitat
Environment description: Dolomite glade. Large (110 acres) and exceptionally diverse (220 plant species identified). According to local MDC biologists, this is one of the best glades north of the Missouri River in Missouri. Northern most, native population of Echinacea paradoxa in Missouri.
Number of plants sampled: 250
Associated species: Rudbeckia missouriensis, Rhus aromatica, Quercus stellata, Juniperus virginiana, Quercus muehlenbergii, Asclepias purpurescens, Asclepias viridiflora, Monarda bradburiana, Echinacea simulata, Mimosa quadrivalvis, Amorpha canescens, Asclepias tuberosa, Eryngium yuccafolium, Helianthus hirsutus, Matalea decipiens, Ptelea trifoliata (common), Carex spp., and Scleria triglomerata.
Comment: Infrequent species (rare elsewhere in county) at site. Four localized populations basically restricted to shallow soils on open south and southwest aspects) throughout a high-quality remnant glade of approximately 50 acres. Perhaps 1,000-1,500 specimens noted. Greatest distance between two specimens sampled is 0.82 miles. Each "population" generally separated by e.g. 200 yards Balanced sample from each of four areas.
Collector(s):