Cheirolophus Cass.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 249

129. Cheirolophus Cass. 2

Perennial herbs. Leaves entire or lobed. Capitula solitary on stems and branches; peduncles long, swollen below capitula. Involucre ovoid to subglobose; bracts in several rows, imbricate, appressed, coriaceous, with palmately fimbriate apical appendages, the fimbriae 7-9, subequal. All florets tubular, equal, the inner hermaphrodite, the outer female. Achenes compressed, somewhat curved, with transverse, glabrous attachment-scar; pappus of several rows of filiform, rather barbellate hairs on inner achenes, absent on outer achenes.

1 Branches leafy throughout; involucral appendages with long flexuous fimbriae 1. sempervirens

1 Branches leafless for some distance below capitula; involucral appendages with short, rigid fimbriae

2 Leaves dentate to subentire, the lower lanceolate; pappus much shorter than achene 2. uliginosus

2 Leaves lyrate-pinnatifid, the lower lyrate; pappus as long as achene 3. intybaceus