Flora of North America species comparison

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Senecio eremophilus var. eremophilus

Senecio eremophilus var. kingii
Photo is of parent taxon

desert ragwort, dryland ragwort
Photo is of parent taxon

King's ragwort
Involucres

7–10 mm diam.

(5–)6–8 mm diam.
Phyllaries

6–8 mm, tips green or weakly, if at all, black.

5–6 mm, tips black.
Calyculi

bractlets prominent (lengths of at least some to about 3/4 phyllaries).

bractlets conspicuous (lengths of at least some to 1/2 phyllaries).
Heads

10–30(–40+).

20–60.
Ray

corolla laminae 5–10 mm.

corolla laminae 5–8 mm.

Senecio eremophilus var. eremophilus

Senecio eremophilus var. kingii
Phenology Flowering late spring–early fall. Flowering summer–early fall.
Habitat Grassy or open, rocky sites Damp and drying habitats in conifer dominated areas, especially road cuts and other disturbed sites
Elevation 200–2300 m (700–7500 ft) 2700–3700 m (8900–12100 ft)
Distribution
from FNA
AK; MT; ND; SD; WY; AB; BC; MB; NT; ON; SK
[BONAP county map]
from FNA
AZ; CO; NM; UT; WY
[BONAP county map]
Discussion

Variety eremophilus may be expected as a casual weed or waif in the cooler portions of the flora. It has been reported as a waif in New York.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety kingii hybridizes with S. spartioides (R. I. Ediger 1970).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 565. FNA vol. 20, p. 565.
Parent taxa Asteraceae > tribe Senecioneae > Senecio > Senecio eremophilus Asteraceae > tribe Senecioneae > Senecio > Senecio eremophilus
Sibling taxa
S. eremophilus var. kingii, S. eremophilus var. macdougalii
S. eremophilus var. eremophilus, S. eremophilus var. macdougalii
Synonyms S. glauciifolius S. kingii, S. ambrosioides
Name authority unknown Greenman: Ann. Missouri Bot. Gard. 2: 598. (1915)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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