genus
Groundsels
Senecio
Field notes
Senecio is a genus of flowering plants in the daisy family (Asteraceae) that includes groundsels and some ragworts. Variously circumscribed taxonomically, the genus Senecio is one of the largest genera of flowering plants. Plants of the World Online currently accepts 1,482 species.
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- Common Groundsel introduced
- Narrow-leaved Ragwort introduced
- Tall Western Groundsel native
- Arrowleaf Senecio native
- Sticky Groundsel introduced
- Shoddy Ragwort present
- Threadleaf Groundsel native
- Madagascar Ragwort present
- Red-purple Ragwort present
- Coastal Burnweed introduced
- Creeping Groundsel introduced
- Cutleaf Burnweed introduced
- Texas Ragwort present
- Oxford Ragwort
- Heath Groundsel introduced
- Cotton Burnweed present
- Buck's Horn Groundsel
- Pinnate-leaved Groundsel
- Hill Fireweed present
- Broom-like Ragwort native
- Fireweed Groundsel present
- Gravel Groundsel
- Kill Ragwort
- Sandveld Ragwort
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Key traits
- Layer
- Shrubs
- Plant type
- Annual Perennial Shrub Wildflower
From USDA PLANTS.
Top native groundsels All
Native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
-
Rayless Ragwort
Senecio aronicoides
caterpillars
11
bees
8
food
6
flowers
34
-
Arrowleaf Senecio
Senecio triangularis
caterpillars
10
bees
15
food
9
flowers
76
-
Tall Western Groundsel
Senecio integerrimus
caterpillars
10
bees
15
food
9
flowers
75
-
Tall Ragwort
Senecio serra
caterpillars
10
bees
14
food
8
flowers
44
-
Fremont's Ragwort
Senecio fremontii
caterpillars
9
bees
13
food
8
flowers
47
-
Threadleaf Groundsel
Senecio flaccidus
caterpillars
9
bees
12
food
12
flowers
63
-
Water Ragwort
Senecio hydrophilus
caterpillars
9
bees
12
food
9
flowers
41
-
Sweet Marsh Ragwort
Senecio hydrophiloides
caterpillars
9
bees
10
food
7
flowers
37
-
Nodding Ragwort
Senecio bigelovii
caterpillars
9
bees
9
food
8
flowers
38
-
Thickleaf Ragwort
Senecio crassulus
caterpillars
9
bees
9
food
7
flowers
83
-
Broom-like Ragwort
Senecio spartioides
caterpillars
8
bees
9
food
9
flowers
96
-
Cut-Leaved Ragwort
Senecio eremophilus
caterpillars
8
bees
9
food
8
flowers
40
-
California Ragwort
Senecio californicus
caterpillars
8
bees
9
food
6
flowers
33
-
Tall Blacktip Ragwort
Senecio atratus
caterpillars
8
bees
8
food
8
flowers
43
-
Sierra Ragwort
Senecio scorzonella
caterpillars
8
bees
5
food
4
flowers
33