Senecio flaccidus var. douglasii |
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bush groundsel, Douglas' ragwort, Douglas' threadleaf ragwort |
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Herbage | usually ± tomentose (usually with persistent, uneven grayish tomentum), sometimes unevenly glabrescent. |
Involucres | usually campanulate. |
Phyllaries | (± 13) ± 21, 7–10(–12) mm. |
Calyculi | bractlets well developed (lengths 1/3–1/2 phyllaries). |
Senecio flaccidus var. douglasii |
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Phenology | Flowering mostly summer–fall (year around in favorable sites). |
Habitat | Dry, open, sandy or rocky sites, usually areas with continual mild disturbance |
Elevation | 100–1500 m (300–4900 ft) |
Distribution |
CA; Mexico (Baja California) |
Source | FNA vol. 20, p. 559. |
Parent taxa | |
Sibling taxa | |
Synonyms | S. douglasii, S. douglasii var. tularensis |
Name authority | (de Candolle) B. L. Turner & T. M. Barkley: Phytologia 69: 52. (1990) |
Web links |