Statistics
Accepted families
156
Accepted genera
1022
Accepted species
3482
Accepted subspecies
343
Accepted varieties
569
Accepted forma
0
Accepted terminal taxa
3775
Excluded taxa*
252
Named hybrids
66
Unnamed hybrids
16
* not included in other tallies.
 
Min
Max
Mean
Genera per family
1
6.4
species per family
1
22.6
Terminal taxa per family
1
24.5
Synonyms per taxon
1
2.7
Most used...
Epithet
# Names
Species epithet
occidentalis
46
Subspecies epithet
californica
6
Variety epithet
douglasii
9
Shortest name
Species with the most subspecies or varieties
Origin
# taxa
%
Both native and introduced
8
0.2%
Introduced
1090
28.9%
Introduced?
4
0.1%
Native
2684
71.1%
Native?
4
0.1%
Ferns and Lycophytes:
Family
Genera
Species
Terminal taxa
Native
Introduced
Endemic
Excluded
Aspleniaceae
1
2
3
3
0
0
0
Athyriaceae
1
2
2
2
0
0
0
Blechnaceae
2
2
2
2
0
0
0
Cystopteridaceae
2
4
4
4
0
0
0
Dennstaedtiaceae
1
1
1
1
0
0
0
Dryopteridaceae
2
14
14
14
0
0
0
Equisetaceae
1
13
13
13
0
0
0
Hymenophyllaceae
1
1
1
1
0
0
0
Isoetaceae
1
8
8
8
0
0
0
Lycopodiaceae
6
12
12
12
0
0
0
Marsileaceae
2
4
4
3
1
0
0
Ophioglossaceae
4
16
19
19
0
0
0
Osmundaceae
0
0
0
0
0
0
0
Polypodiaceae
1
4
4
4
0
0
0
Pteridaceae
6
12
13
13
0
0
0
Salviniaceae
1
2
2
2
0
0
0
Selaginellaceae
1
4
4
4
0
0
0
Thelypteridaceae
3
3
3
3
0
0
0
Woodsiaceae
1
2
3
3
0
0
0
TOTAL
37
106
112
111
1
0
0
Gymnosperms:
Family
Genera
Species
Terminal taxa
Native
Introduced
Endemic
Excluded
Cupressaceae
3
7
10
7
3
0
0
Pinaceae
6
17
20
20
0
0
2
Taxaceae
1
2
2
1
1
0
0
TOTAL
10
26
32
28
4
0
2
Dicots:
Family
Genera
Species
Terminal taxa
Native
Introduced
Endemic
Excluded
Adoxaceae
2
8
10
6
4
0
0
Amaranthaceae
19
63
65
35
30
1
12
Anacardiaceae
2
4
4
3
1
0
0
Apiaceae
35
91
92
78
14
8
11
Apocynaceae
3
9
9
6
2
0
0
Aquifoliaceae
1
1
1
0
1
0
0
Araliaceae
4
6
6
3
3
0
0
Aristolochiaceae
1
1
1
1
0
0
0
Asteraceae
128
428
463
324
134
11
25
Balsaminaceae
1
7
7
4
3
0
1
Berberidaceae
4
10
10
6
4
0
0
Betulaceae
3
15
17
12
5
0
0
Bignoniaceae
1
2
2
0
2
0
0
Boraginaceae
24
79
84
64
20
7
3
Brassicaceae
57
169
172
106
66
3
14
Cabombaceae
2
2
2
1
1
0
0
Cactaceae
2
3
3
3
0
0
0
Campanulaceae
9
22
22
15
7
1
2
Cannabaceae
3
3
4
1
3
0
0
Caprifoliaceae
2
18
19
11
8
0
0
Caryophyllaceae
31
96
104
57
47
3
1
Celastraceae
3
9
9
7
2
0
0
Ceratophyllaceae
1
2
2
2
0
0
0
Cleomaceae
2
2
3
3
0
0
0
Convolvulaceae
3
16
16
11
5
0
2
Cornaceae
1
5
5
5
0
0
0
Crassulaceae
3
16
16
10
6
1
2
Crossosomataceae
1
1
1
1
0
0
0
Cucurbitaceae
5
5
5
1
4
0
0
Dipsacaceae
2
2
2
0
2
0
0
Droseraceae
2
4
4
3
1
0
0
Ehretiaceae
1
1
1
1
0
0
0
Elaeagnaceae
2
4
4
2
2
0
0
Elatinaceae
2
3
3
3
0
0
0
Ericaceae
23
61
63
59
4
0
0
Euphorbiaceae
3
19
20
5
15
0
1
Fabaceae
36
182
213
136
76
12
8
Fagaceae
3
6
6
2
4
0
1
Garryaceae
2
2
2
1
1
0
0
Gentianaceae
7
15
16
14
2
0
0
Geraniaceae
2
20
20
5
15
0
0
Grossulariaceae
1
21
23
21
2
0
0
Haloragaceae
1
9
9
6
3
0
0
Heliotropiaceae
1
1
1
1
0
0
0
Hydrangeaceae
2
2
2
2
0
0
0
Hydrophyllaceae
5
26
30
29
1
1
1
Hypericaceae
2
13
13
2
10
0
0
Juglandaceae
1
4
4
0
4
0
0
Lamiaceae
31
57
60
24
36
0
11
Lauraceae
1
1
1
0
1
0
0
Lentibulariaceae
2
7
7
6
1
0
0
Limnanthaceae
2
2
2
1
1
0
1
Linaceae
2
4
4
2
2
0
0
Linderniaceae
1
1
1
1
0
0
0
Linnaeaceae
1
1
1
1
0
0
0
Loasaceae
1
4
5
5
0
0
0
Lythraceae
3
6
6
2
4
0
0
Malvaceae
10
19
20
11
9
2
5
Martyniaceae
0
0
0
0
0
0
1
Mazaceae
1
1
1
0
1
0
0
Menyanthaceae
3
3
3
2
1
0
0
Molluginaceae
1
1
1
1
0
0
0
Montiaceae
7
31
33
32
1
0
1
Moraceae
2
2
2
0
2
0
1
Myricaceae
2
2
2
2
0
0
0
Namaceae
1
1
1
1
0
0
1
Nitrariaceae
1
1
1
0
1
0
0
Nyctaginaceae
2
4
5
4
1
0
1
Nymphaeaceae
2
3
3
2
1
0
0
Oleaceae
3
5
5
1
4
0
3
Onagraceae
12
60
62
53
9
1
5
Orobanchaceae
13
48
61
55
6
3
3
Oxalidaceae
1
7
7
3
4
0
0
Paeoniaceae
1
1
1
1
0
0
0
Papaveraceae
8
18
18
7
11
0
1
Paulowniaceae
1
1
1
0
1
0
0
Penthoraceae
1
1
1
0
1
0
0
Phrymaceae
4
29
29
27
2
0
3
Phytolaccaceae
1
1
1
0
1
0
0
Plantaginaceae
18
96
110
75
35
3
7
Platanaceae
1
2
2
0
2
0
0
Plumbaginaceae
2
3
4
1
3
0
0
Polemoniaceae
13
54
56
56
0
3
2
Polygalaceae
1
1
1
0
1
0
0
Polygonaceae
12
73
95
73
22
4
4
Portulacaceae
1
1
1
0
1
0
0
Primulaceae
6
26
29
22
7
1
0
Ranunculaceae
21
93
105
87
17
5
1
Resedaceae
1
2
2
0
2
0
0
Rhamnaceae
3
8
9
8
1
0
0
Rosaceae
41
151
167
104
62
3
37
Rubiaceae
4
17
17
11
6
0
4
Salicaceae
2
43
45
37
8
0
4
Santalaceae
3
8
10
10
0
0
0
Sapindaceae
2
9
9
3
6
0
0
Sarcobataceae
1
1
1
1
0
0
0
Sarraceniaceae
2
4
4
0
4
0
0
Saxifragaceae
22
55
61
60
1
1
1
Scrophulariaceae
4
10
11
4
7
0
3
Simaroubaceae
1
1
1
0
1
0
0
Solanaceae
8
25
26
1
25
0
1
Tamaricaceae
1
2
2
0
2
0
1
Thymelaeaceae
2
3
3
0
3
0
0
Ulmaceae
1
4
4
0
4
0
0
Urticaceae
2
4
6
3
3
0
1
Valerianaceae
4
12
12
10
2
1
2
Verbenaceae
1
6
6
4
2
0
0
Violaceae
1
24
26
20
6
1
1
Vitaceae
2
4
4
0
4
0
0
Zygophyllaceae
2
2
2
0
2
0
0
TOTAL
757
2554
2766
1902
854
76
190
Monocots:
Family
Genera
Species
Terminal taxa
Native
Introduced
Endemic
Excluded
Acoraceae
1
2
2
1
1
0
0
Alismataceae
3
10
10
5
5
0
0
Amaryllidaceae
4
24
26
18
6
3
6
Araceae
8
12
12
9
3
0
1
Asparagaceae
10
17
21
15
6
1
4
Butomaceae
1
1
1
0
1
0
0
Colchicaceae
1
1
1
0
1
0
0
Commelinaceae
2
1
1
0
1
0
1
Cyperaceae
14
198
205
188
16
0
15
Hydrocharitaceae
7
10
10
5
5
0
0
Iridaceae
5
13
18
13
5
0
3
Juncaceae
2
63
69
53
15
0
2
Juncaginaceae
1
5
5
5
0
0
0
Liliaceae
10
26
29
29
0
1
2
Melanthiaceae
5
11
13
13
0
0
0
Orchidaceae
12
36
43
42
1
1
2
Poaceae
101
323
356
201
153
2
19
Pontederiaceae
3
3
3
1
2
0
0
Potamogetonaceae
3
22
22
21
1
0
1
Ruppiaceae
1
1
1
1
0
0
0
Scheuchzeriaceae
1
1
1
1
0
0
0
Tofieldiaceae
1
1
1
1
0
0
0
Typhaceae
2
9
9
6
3
0
0
Zosteraceae
3
5
5
4
1
0
0
TOTAL
201
795
864
632
226
8
56