Oncosiphon piluliferum
Bot. J. Linn. Soc. 96: 314. 1988.
Common names: Stinknet globe chamomile
Basionym: Cotula pilulifera Linnaeus f.
Synonyms: Matricaria globifera (Thunberg) Fenzl ex HarveyPentzia globifera (Thunberg) Hutchinson
Treatment appears in FNA Volume 19. Treatment on page 539.
Revision as of 00:26, 27 July 2019 by FNA>Volume Importer
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
Ariz., Calif., South Africa.
Discussion
Selected References
None.
Lower Taxa
None.