224, 
5. Leaves coarsely cleft or serrate, ovate to 
lanceolate, bristly-ciliate; rays longer than 
WAGE) TO GAS Cie eusieiovsicrsjeliojeioleleisielie) syolsie ei auelsie/eeseiejeeisieie Wis) ANGUS 
5. Leaves entire, linear-lanceolate to broadly 
oblanceolate, minutely strigose to glabrous; 
rays equal to or shorter than width of disc..... E. strigosus 
Erigeron canadensis L. Horseweed, Fleabane, 
Hogweed, Butterweed 
Java Farm. Infrequent in old fields south of main building 
area. Hectares 2499, 3409. Associate species: Poa pratensis 
(dense turf), Achillea millefolium, Plantago lanceolata, Cirsium 
discolor, Hypericum perforatum, Asclepias syriaca, Verbascum thapsus. 
Higman 11. 
E. philadelphicus L. Fleabane 
Ivy Neck. One station: abandoned grassy field on Scaffold 
Peninsula. Hectares 4761, 4772. Associate species: Trifolium 
pratense, T. hybricum, Oenothera fruticosa. Higman 726. 
E. annuus (L.) Pers. White-top, 
Daisy Fleabane 
Java Farm and Ivy Neck. Infrequent to moderately abundant in 
old fields. Also scattered along old entrance road between Muddy 
Creek culvert and main building area. Variety of associate species, 
including: Bromus japonicus, Agrimonia parviflora, Solidago altissima, 
Solanum carolinense. Often among dense Rhus radicans and Lonicera 
japonica. Higman 48, 750, 889, 892. 
E. strigosus Muhl. White-top, 
Daisy Fleabane 
Java Farm. Infrequent in old fields south of main building 
area and south of Fox Point Road. Associate species vary, include: 
Solidago graminifolia, Cyperus strigosus, Lespedeza cuneata, Verbascum 
thapsus. Higman 49, 122. 
Senecioneae 
1. Heads monoecious or subdioecious, the hermaphrodite 
(bisexual) flowers sterile, the pistillate ones 
fruiting. Expected (Tussilago). 
1. Heads with all or nearly all flowers fertile. 
