Sweetly aromatic, creeping, perennial herb. Stems decumbent to ascending, to c. 20 cm tall, striate, moderately to densely hairy, much-branched from base. Basal and lower cauline lvs apetiolate, obovate, sparsely to moderately hairy, 3-pinnatisect, 15-50 × 5-15 mm; ultimate segments narrow-linear to subulate, entire, not all in one plane giving a feathery appearance; cauline lvs few, smaller than basal, oblong and becoming 1-pinnatisect. Involucral bracts sparsely hairy, 2-5 mm long; margins pale, membranous, often with an extended membranous flap at apex. Capitula solitary, c. 8-20-(30) mm diam.; ray florets 13-20, ♀; ligules white; disc florets numerous, yellow. Receptacle scales elliptic-oblong, obtuse and often irregular at apex. Achenes 1.1-1.2 mm long, narrow-obovoid, narrowed to apex, brown, with 1-4 narrow ribs on inner surface.