Oncosiphon pilulifer
Bot. J. Linn. Soc. 96: 314. 1988.
Common names: Stinknet globe chamomile
IntroducedIllustrated
Basionym: Cotula pilulifera Linnaeus f. Suppl. Pl., 378. 1782
Synonyms: Matricaria globifera (Thunberg) Fenzl ex Harvey Pentzia globifera (Thunberg) Hutchinson
Treatment appears in FNA Volume 19. Treatment on page 539.
Herbage with vile odor. Leaf blades mostly obovate, 20–35 mm, ultimate lobes linear to spatulate or oblanceolate, 0.5–1 mm wide, sparsely puberulent or strigillose, minutely gland-dotted (in pits). Heads borne singly or 2–4 in corymbiform arrays. Peduncles 1–2(–8) cm, ebracteate. Involucres 3–3.5 × 4–6 mm. Receptacles ± conic to subspheric, muricate. Disc corollas 1.5–2 mm. Cypselae slightly curved, 0.6–0.8 mm, sparingly dotted with minute, glistening oil glands; pappi coroniform, 0.05–0.1 mm, margins subentire or minutely dentate. 2n = 12.
Phenology: Flowering Mar–Jun.
Habitat: Disturbed sites, coastal scrub
Elevation: 500–900 m
Distribution
Introduced; Ariz., Calif., South Africa.
Discussion
Selected References
None.
Lower Taxa
None.