Top native groundsels
31 species, 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
-
Clark's Ragwort
Senecio clarkianus
caterpillars
8
bees
4
food
4
flowers
31
-
Showy Alpine Ragwort
Senecio amplectens
caterpillars
7
bees
6
food
8
flowers
36
-
Bashful Ragwort
Senecio pudicus
caterpillars
7
bees
5
food
7
flowers
35
-
Blochman's Ragwort
Senecio blochmaniae
caterpillars
7
bees
4
food
4
flowers
20
-
Elmer's Ragwort
Senecio elmeri
caterpillars
6
bees
8
food
6
flowers
35
-
Chaparral Ragwort
Senecio aphanactis
caterpillars
6
bees
8
food
6
flowers
25
-
Island Senecio
Senecio lyonii
caterpillars
6
bees
6
food
5
flowers
22
-
Mojave Ragwort
Senecio mohavensis
caterpillars
6
bees
5
food
5
flowers
23
-
Olympic Mountain Ragwort
Senecio neowebsteri
caterpillars
6
bees
4
food
7
flowers
35
-
Ertter's Ragwort
Senecio ertterae
caterpillars
6
bees
2
food
5
flowers
23
-
Nuttall's Ragwort
Senecio megacephalus
caterpillars
4
bees
4
food
6
flowers
33
-
Mountain Ragwort
Senecio parryi
caterpillars
4
bees
4
food
3
flowers
19
-
Flagstaff Ragwort
Senecio actinella
caterpillars
4
bees
2
food
3
flowers
22
-
Mount Patterson Senecio
Senecio pattersonensis
-
Quayle's Ragwort
Senecio quaylei
-
San Gabriel Ragwort
Senecio astephanus