Vill DESCEIPTIOII OF JACKSON COUNTY 



occur. Coming up from the south at Greenwood are Gerardia Skinneri- 

 ana, Talirmm calydnum and Fimbriglylis laxa. Tragia ramesa, AHsiida 

 haairamea and Thaspium barbinode get as far north as Martin City, while 

 Draba cuneifolia seems to reach its northern limit at Dodson. 



But the most interesting of all is the bog region found along the 

 Missouri bluffs west of Sibley. Many eastern plants fare in the west, 

 are here found. Naumburgia thgrsifiora, Epilobium Hneare, Epilobium 

 coloratum, Dryopteria Thdypteris, Polygonum sagittatum, Dulichium arundi- 

 naceum, Carex hyslrieina, Carex lurida, Carex typhinoides and Cardamine 

 Pennsylvanica may he mentioned. In the rich woods adjoining, Asple- 

 nium Filix-foemina, Botrychium obliguum, Osmunda Clayioniana, Hydrastis 

 Canadensia, Caulophyllum ihalictroides and Xorycarpus diandraa occur, but 

 often almost hidden by the luxurious growth of Aaplenium anguaiifoHum. 

 In the very rich blufis at Courtney, Carex Alburaina and Bikukula 

 Canadenais may be found, while on the rooks Aaplenium platyneuron and 

 Aaplenium parvulum may perchance reward the very diligent searcher. 

 On the rocky bluffs at Kansas City, Polymnia Canadenais radiaia abounds, 

 although found in no other station in the county, and Thalietrum dioicum 

 has the same local distribution on the rocky bluff north of Fairmount 

 Park. 



Aquatics are not common with us, but still we have a fair share. We 

 have four good sized ponds, one at Lake City, another at SbefSeld, a 

 third at Atberton called Hiffner's Lake, and a fourth at Sibley known as 

 Fish Lake. Chief among our water-plants found in these lakes is the 

 chinquapin water-lily, unfortunately confined to Lake City and Fish 

 Lake. Less noticeable, but perhaps more interesting are the Utricula- 

 rias, Potamogetons, Myriophyllum, Ceratophyllum, Ranunculus, Didiplis, 

 Monniera, Lemna, Spirodela, Azolla, Heterantheras and Sagittarias, some 

 found in but one or a few, others in all our ponds. 



With such a large city and important railroad center within its borders 

 as Kansas City, one would naturally expect to find many foreign plants 

 in Jackson County, and this expectation is amply borne out. Some of 

 the introduced plants are among our most common weeds, while of others 

 but a few clumps have been found. Although not weeds, clover ( Trifo- 

 lium repena) and blue-grass [Poa pratensis) are perhaps the most common 

 of our introduced plants. In fact it is hard to believe that they are in- 

 troduced. Of the introduced plants which have become common weeds, 

 Panicum Crus-GaUi, Syntherisma aanguinalia, Chaetochlsa ylauea and Clme- 

 toehloa viridia, Agroatia alba, Ehusine Indica, Eragroatis major, Featuca ela- 

 tior, Bromua aecalinus, Bumex criapus, Chenopodium ambroaioidea, Chenopii- 

 dium album, Amaranthua retroflexua, Brassica nigra, Bursa Buraa-paatoria, 

 Siaymbrium officinale, Paatinaca sativa, Ipomoea purpurea, Ipomoea hedera. 

 cea, Verbaacum Thapsvs, Xantldum airumarium, Eelianthua annuua, An- 

 themia Cotula, Carduus lanceolata. Taraxacum officinale, Laciuca viroaa and 

 Sonchna aaper, are met with everywhere, and are some of our commonest 

 plants. Many native plants have taken on a weedy aspect, and with the 



