Senecio quaylei

T. M. Barkley

Sida 19: 286, figs. 1, 2. 2000.

Treatment appears in FNA Volume 20. Treatment on page 561. Mentioned on page 548.

Annuals, 80–120 cm (taproots surrounded by fibrous roots). Herbage glabrous or sparsely hairy. Stems single. Leaves evenly distributed; petiolate; blades ovate, 12–24 × 8–12 cm, bases tapered or contracted, margins wavy and dentate to denticulate (mid leaves sessile, ovate to broadly lanceolate, nearly as large as basal and proximal; distal sessile, lanceolate to linear-lanceolate, becoming bractlike). Heads 20–40+ in corymbiform arrays or cymiform clusters. Calyculi of 2–7 bractlets (1–3 mm). Phyllaries ± 13, 7–9 mm, tips green to grayish. Ray florets ± 8; corolla laminae 7–10 mm. Cypselae hirtellous.

Phenology: Flowering spring.
Habitat: Open, disturbed sites, especially roadsides
Elevation: 200–400 m


Of conservation concern.

Senecio quaylei resembles S. ampullaceus; it is more robust and glabrous, and has prominently clasping mid-cauline leaves. The size and robustness suggest that it may be a polyploid derivative of S. ampullaceus.

Selected References


Lower Taxa