| Criteria: found in Colusa County • is native • group by lifeform | ||||
| 1997 records | include photos for these plants | # number of sources | ||
| Scientific Name | Common Name | Lifeform | # |
Lifeform: Annual | 760 plants | ||
|
Lifeform: Perennial | 943 plants | ||
Lifeform: Fern | 43 plants | ||
| Adiantum jordanii | Adiantum | Fern | 4 |
| Aspidotis densa | Lace fern | Fern | 1 |
| Athyrium filix-femina | Common ladyfern | Fern | 19 |
| Athyrium filix-femina ssp. cyclosorum | Subarctic ladyfern | Fern | |
| Athyrium filix-femina var. cyclosorum | Western lady fern | Fern | 1 |
| Azolla filiculoides | Mosquito fern | Fern | |
| Azolla mexicana | Mexican mosquito fern | Fern | |
| Azolla microphylla | Mexican mosquito fern | Fern | |
| Botrychium crenulatum | Scalloped moonwort | Fern (rhizomatous) | |
| Cheilanthes covillei | Coville's lip fern | Fern | 4 |
| Cheilanthes gracillima | Lace lip fern | Fern | 1 |
| Cheilanthes intertexta | Coastal lipfern | Fern | |
| Cryptogramma acrostichoides | American parsley fern | Fern | |
| Cystopteris fragilis | Brittle fern | Fern | 1 |
| Equisetum arvense | Common horsetail | Fern | 6 |
| Equisetum hyemale | Scouringrush horsetail | Fern | 31 |
| Equisetum hyemale ssp. affine | Giant scouring rush | Fern | 7 |
| Equisetum hyemale var. affine | Scouringrush horsetail | Fern | 4 |
| Equisetum laevigatum | Smooth scouring rush | Fern | 2 |
| Equisetum telmateia | Giant horsetail | Fern | 3 |
| Equisetum telmateia ssp. braunii | Giant horsetail | Fern | 1 |
| Equisetum telmateia var. braunii | Giant horsetail | Fern | 1 |
| Isoetes bolanderi | Bolander's quillwort | Fern | |
| Marsilea vestita | Hairy waterclover | Fern | 6 |
| Marsilea vestita ssp. vestita | Hairy pepperwort | Fern | 5 |
| Myriopteris covillei | Coville's lip fern | Fern | 4 |
| Myriopteris gracillima | Lace lip fern | Fern | 1 |
| Myriopteris intertexta | Coastal lip fern | Fern | |
| Pellaea andromedifolia | Coffee fern | Fern | 3 |
| Pellaea brachyptera | Sierra cliff brake | Fern | |
| Pellaea mucronata | Bird's foot fern | Fern | 2 |
| Pellaea mucronata var. mucronata | Bird's foot fern | Fern | |
| Pentagramma triangularis | Gold back fern | Fern | 3 |
| Pentagramma triangularis ssp. semipallida | Pale gold back fern | Fern | 3 |
| Pentagramma triangularis ssp. triangularis | Gold back fern | Fern | |
| Pilularia americana | Pillwort | Fern | |
| Polystichum imbricans | Narrow leaved sword fern | Fern | 1 |
| Polystichum imbricans ssp. curtum | Cliff sword fern | Fern | |
| Polystichum imbricans ssp. imbricans | Rock sword fern | Fern | |
| Polystichum munitum | Western sword fern | Fern | 43 |
| Pteridium aquilinum | Western brackenfern | Fern | 5 |
| Pteridium aquilinum var. pubescens | Western bracken fern | Fern | |
| Woodwardia fimbriata | Western chain fern | Fern | 31 |
|
Lifeform: Shrub | 206 plants | ||
|
Lifeform: Tree | 43 plants | ||
| Abies Xshastensis | Shasta red fir | Tree | |
| Abies concolor | White fir | Tree | 22 |
| Abies magnifica | Magnificant silver fir | Tree | 3 |
| Abies magnifica var. shastensis | Shasta red fir | Tree | |
| Acer macrophyllum | Bigleaf maple | Tree | 52 |
| Acer negundo | Boxelder | Tree | 30 |
| Acer negundo var. californicum | California box elder | Tree | 30 |
| Aesculus californica | Buckeye | Tree | 46 |
| Alnus rhombifolia | White alder | Tree | 38 |
| Calocedrus decurrens | Incense cedar | Tree | 40 |
| Fraxinus latifolia | Oregon ash | Tree | 29 |
| Juglans californica var. hindsii | Northern california black walnut | Tree | 13 |
| Juglans hindsii | Northern california black walnut | Tree | 13 |
| Pinus attenuata | Knobcone pine | Tree | 6 |
| Pinus jeffreyi | Jeffrey pine | Tree | 17 |
| Pinus lambertiana | Sugar pine | Tree | 13 |
| Pinus ponderosa | Yellow pine | Tree | 29 |
| Pinus ponderosa var. ponderosa | North plateau ponderosa pine | Tree | 2 |
| Pinus sabiniana | Gray pine | Tree | 28 |
| Platanus racemosa | California sycamore | Tree | 36 |
| Populus balsamifera ssp. trichocarpa | Black cottonwood | Tree | 27 |
| Populus fremontii | Fremont cottonwood | Tree | 32 |
| Populus fremontii ssp. fremontii | Cottonwood | Tree | 4 |
| Populus trichocarpa | Black cottonwood | Tree | 27 |
| Pseudotsuga menziesii | Douglas fir | Tree | 31 |
| Pseudotsuga menziesii var. menziesii | Douglas fir | Tree | 4 |
| Quercus Xmorehus | Oracle oak | Tree | 1 |
| Quercus berberidifolia | Inland scrub oak | Tree | 13 |
| Quercus chrysolepis | Gold cup live oak | Tree | 24 |
| Quercus chrysolepis var. nana | Canyon live oak | Tree | 25 |
| Quercus douglasii | Blue oak | Tree | 26 |
| Quercus garryana | Oregon oak | Tree | 25 |
| Quercus garryana var. breweri | Oregon oak | Tree | 2 |
| Quercus garryana var. garryana | Oregon oak | Tree | 1 |
| Quercus kelloggii | California black oak | Tree | 24 |
| Quercus lobata | Valley oak | Tree | 39 |
| Salix gooddingii | Gooding's willow | Tree | 7 |
| Salix laevigata | Polished willow | Tree | 17 |
| Salix lasiandra | Pacific willow | Tree | 20 |
| Salix lasiandra var. lasiandra | Pacific willow | Tree | 6 |
| Salix lucida ssp. lasiandra | Shining willow | Tree | 6 |
| Torreya californica | California nutmeg | Tree | 9 |
| Umbellularia californica | California bay | Tree | 40 |
|
Pink background indicates a plant is non-native.
! indicates a plant is potentially invasive. |
||
| NB: found in Colusa County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county. | ||