Difference between revisions of "Senecio aphanactis"
Pittonia 1: 220. 1888.
Conservation concern
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|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Senecio | |genus=Senecio | ||
Latest revision as of 19:59, 5 November 2020
Annuals, 5–20+ cm (taproots relatively short and thin). Herbage glabrous or sparsely tomentose (especially distally). Stems usually 1 (relatively thin, delicate). Leaves evenly distributed; sessile; blades oblanceolate to lance-linear, 2–4 × 0.5–1 cm, bases sometimes weakly clasping, margins usually subpinnate to dentate, sometimes subentire (distal leaves bractlike). Heads 4–10+ in open, cymiform arrays. Calyculi 0 or of 1–3+ lance-deltate bractlets. Phyllaries ± 8 or ± 13, 5–6 mm, tips greenish. Ray florets 0 or 1–5; corolla laminae 0.5–1+ mm (barely surpassing phyllaries, heads perhaps technically disciform). Cypselae densely hairy. 2n = 40.
Phenology: Flowering late winter–spring.
Habitat: Dry, open ground, especially alkaline flats
Elevation: 10–400 m
Distribution
Calif., Mexico (Baja California).
Discussion
Of conservation concern.
Selected References
None.
Lower Taxa
None.