California Polytechnic State University, Robert F. Hoover Herbarium (OBI)
OBI141138
3c364d31-8e32-44dc-a2c3-6187cb123ffb
58291
Centaurea jacea L.
Asteraceae
David J. Keil
29056-F
2000-08-10
10-Aug-00
United States, Oregon, Marion, Oregon Route 22, just east of junction with Oregon Route 226 (44°47'39"N x 122°36'50"W).
44.79417 -122.6139
244 meters
ca 800ft.
Grassy roadside in area of mixed conifer-hardwood forest. Ca. 800 ft. elev.; Locally common from near pavement to edge of blackberry brambles.
Individual plants in population varying from "subradiant" with dark brown, nearly black phyllaries with long fringed appendages ? nigra type ? to strongly radiant with light brown, membranous appendages ? jacea type ? with various intermediates ?radiata types. Stems from ca. 3 dm tall to ca. 12 dm tall. Corollas pink-purple. Leaves varying from entire to coarsely lobed.