Plants of Cosumnes River Preserve
The plants most often spotted in Cosumnes River Preserve, ranked by recent research-grade observations.
2,176
recent observations
50
species listed
50
plants
Naturalists have logged 2,176 research-grade observations across the 50 most-recorded species in Cosumnes River Preserve. The most frequently seen is the valley oak, with 228 recorded sightings.
Rarer finds confirmed in Cosumnes River Preserve include Flatface Calicoflower - uncommon enough that a sighting is worth logging.
Most-observed plants in Cosumnes River Preserve
valley oak
Quercus lobata
228 observations
chicory
Cichorium intybus
184 observations
buttonbush
Cephalanthus occidentalis
143 observations
Pacific poison oak
Toxicodendron diversilobum
119 observations
common water hyacinth
Pontederia crassipes
97 observations · iNaturalist
narrowleaf milkweed
Asclepias fascicularis
82 observations · iNaturalist
broadleaved pepperweed
Lepidium latifolium
79 observations · iNaturalist
flatface calicoflower
Downingia pulchella
69 observations
Wild radish
Raphanus raphanistrum
68 observations · iNaturalist
Pennyroyal
Mentha pulegium
57 observations · iNaturalist
water primrose
Ludwigia hexapetala
53 observations · iNaturalist
ribwort plantain
Plantago lanceolata
49 observations
bristly oxtongue
Helminthotheca echioides
44 observations · iNaturalist
field bindweed
Convolvulus arvensis
42 observations
scarlet pimpernel
Lysimachia arvensis
37 observations · iNaturalist
fennel
Foeniculum vulgare
36 observations · iNaturalist
California wild grape
Vitis californica
36 observations · iNaturalist
turkey tangle frogfruit
Phyla nodiflora
35 observations · iNaturalist
California poppy
Eschscholzia californica
34 observations
Armenian Blackberry
Rubus armeniacus
34 observations
Oregon Ash
Fraxinus latifolia
34 observations · iNaturalist
box elder
Acer negundo
33 observations
western blue-eyed grass
Sisyrinchium bellum
33 observations · iNaturalist
poison hemlock
Conium maculatum
33 observations
milk thistle
Silybum marianum
32 observations
coyote brush
Baccharis pilularis
30 observations · iNaturalist
California Wild Rose
Rosa californica
30 observations
rough cocklebur
Xanthium strumarium
29 observations · iNaturalist
pineapple-weed
Matricaria discoidea
27 observations · iNaturalist
coast live oak
Quercus agrifolia
24 observations
California fuchsia
Epilobium canum
24 observations · iNaturalist
Bladderpod
Cleomella arborea
24 observations · iNaturalist
Great Valley gumweed
Grindelia camporum
23 observations · iNaturalist
red osier dogwood
Cornus sericea
20 observations
white brodiaea
Triteleia hyacinthina
20 observations · iNaturalist
harvest brodiaea
Brodiaea elegans
19 observations · iNaturalist
Cut-leaved crane's-bill
Geranium dissectum
19 observations · iNaturalist
bur clover
Medicago polymorpha
19 observations · iNaturalist
lance-leaved water-plantain
Alisma lanceolatum
19 observations · iNaturalist
curled dock
Rumex crispus
18 observations
trailing blackberry
Rubus ursinus
17 observations
floating primrose-willow
Ludwigia peploides
17 observations · iNaturalist
slender stinging nettle
Urtica gracilis
15 observations
bird's-foot trefoil
Lotus corniculatus
14 observations · iNaturalist
Frémont Cottonwood
Populus fremontii
13 observations
Italian thistle
Carduus pycnocephalus
13 observations · iNaturalist
Common Vetch
Vicia sativa
13 observations
alkali mallow
Malvella leprosa
13 observations · iNaturalist
Narrowleaf Willow
Salix exigua
13 observations
Bull Thistle
Cirsium vulgare
12 observations
Plants in nearby places
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