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U.S. Forest Service

Plant of the Week

Enjoy Your Wildflowers

Thousands of wildflowers grow on our national forests and grasslands, in many shapes, sizes, and colors. A field of wildflowers or colorful plants upon a lush forest floor is a beautiful sight, but so is a single flower or scattered plants growing upon what at first glance may appear to be a dry and desolate landscape.

Celebrating Wildflowers periodically features a different wildflower plant found on our national forests and grasslands.

The Plant of the Week descriptions are organized alphabetically by genus and species.

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Gallery: C

Red Maids Red Maids (Calandrinia ciliata)

White Mariposa Lily, Calochortus eurycarpus. White Mariposa Lily (Calochortus eurycarpus)

Umpqua mariposa lily, Calochortus umpquaensis Umpqua mariposa lily (Calochortus umpquaensis)

Butterfly Mariposa Lily Butterfly Mariposa Lily (Calochortus venustus)

Tuberous Grass Pink (Calopogon tuberosus). Tuberous Grass Pink (Calopogon tuberosus)

White Marsh Marigold White Marsh Marigold (Caltha leptosepala)

Yellow Marsh Marigold (Caltha palustris). Yellow Marsh Marigold (Caltha palustris)

Eastern Sweetshrub, Calycanthus floridus. Eastern Sweetshrub (Calycanthus floridus)

Common Camas. Common Camas (Camassia quamash)

Wild hyacinth, Camassia scilloides. Wild Hyacinths (Camassia scilloides)

Tansyleaf Suncup Tansyleaf Suncup (Camissonia tanacetifolia)

harebell. Harebell (Campanula rotundifolia)

Heartleaf Bittercress (Cardamine cordifolia). Heartleaf Bittercress (Cardamine cordifolia)

Cut-leaved Toothwort (Cardamine concatenata). Cut-leaved Toothwort (Cardamine concatenata)

Clustered Sedge (Carex cumulata). Clustered Sedge (Carex cumulata)

plantain-leaf sedge. Plantain-leaf sedge (Carex plantaginea)

Native Sedge (Carex vernacula). Native Sedge (Carex vernacula)

Saguaro (Carnegiea gigantea). Saguaro (Carnegiea gigantea)

Christs Indian Paintbrush, Castilleja christii. Christ’s Indian Paintbrush (Castilleja christii)

Indian Paintbrush (Castilleja coccinea) Indian Paintbrush (Castilleja coccinea)

Pale painted cup (Castilleja septentrionalis) Pale painted cup (Castilleja septentrionalis)

Northern Catalpa (Catalpa speciosa). Northern Catalpa (Catalpa speciosa)

Field Chickweed (Cerastium arvense). Field Chickweed (Cerastium arvense)

Mountain Mahogany Mountain Mahogany (Cercocarpus ledifolius)

Spotted Sandmat (Chamaesyce maculata) Spotted Sandmat (Chamaesyce maculata)

Fireweed (Chamerion angustifolium). Fireweed (Chamerion angustifolium)

turtlehead, Chelone glabra. Turtlehead (Chelone glabra)

Desert willow flowers. Desert willow (Chilopsis linearis)

Soap Plant (Chlorogalum pomeridianum) Soap Plant (Chlorogalum pomeridianum)

Water Hemlock (Cicuta maculata). Water Hemlock (Cicuta maculata)

Field Thistle (Cirsium discolor) Field Thistle (Cirsium discolor)

Pitcher's Thistle (Cirsium pitcheri). Pitcher’s Thistle (Cirsium pitcheri)

A closer look at the attractive flowering head of the wavyleaf thistle (Cirsium undulatum (Nutt.) Spreng.). Wavyleaf Thistle (Cirsium undulatum (Nutt.) Spreng.)

Sacramento Mountain Thistle (Cirsium vinaceum). Sacramento Mountain Thistle (Cirsium vinaceum)

Tweedy's lewisia, Cistanthe tweedyi. Tweedy's lewisia (Cistanthe tweedyi)

Small Spreading Pogonia (Cleistes bifaria) Small Spreading Pogonia (Cleistes bifaria)

Purple clematis (Clematis occidentalis var. occidentalis) Purple clematis (Clematis occidentalis var. occidentalis)

Rocky Mountain Bee Plant (Cleome serrulata) Rocky Mountain Bee Plant (Cleome serrulata)

Yerba Buena (Clinopodium douglasii) Yerba Buena (Clinopodium douglasii)

bluebead lily, Clintonia borealis. Bluebead lily (Clintonia borealis)

Butterfly Pea (Clitoria mariana). Butterfly Pea (Clitoria mariana)

Tiger's Eye (Coltricia Perennis). Tiger's Eye (Coltricia Perennis)

Birdbill Dayflower (Commelina dianthifolia). Birdbill Dayflower (Commelina dianthifolia)

American Cancer-root (Conopholis americana). American Cancer-root (Conopholis americana)

Merten's Coralroot (Corallorhiza mertensiana). Merten's Coralroot (Corallorhiza mertensiana)

Autumn Coralroot (Corallorhiza odontorhiza) Autumn Coral-Root (Corallorhiza odontorhiza)

Striped Coralroot (Corallorhiza striata). Striped Coralroot (Corallorhiza striata)

Early Coralroot (Corallorhiza trifida). Early Coralroot (Corallorhiza trifida)

Wister's Coralroot (Corallorhiza wisteriana). Wister's Coralroot (Corallorhiza wisteriana)

Lanceleaf Coreopsis (Coreopsis lanceolata). Lanceleaf Coreopsis (Coreopsis lanceolata)

Golden Tickseed, Coreopsis tinctoria. Golden Tickseed (Coreopsis tinctoria Nutt.)

Dwarf dogwood, Cornus canadensis. Dwarf Dogwood (Cornus canadensis)

Pacific Dogwood (Cornus nuttallii). Pacific Dogwood (Cornus nuttallii)

Red Osier Dogwood (Cornus sericea). Red Osier Dogwood (Cornus sericea)

Plateau Yellow Miner’s Candle (Cryptantha flava). Plateau Yellow Miner’s Candle (Cryptantha flava)

Orange-Fruited Horse Gentian Five-angled Dodder (Cuscuta pentagona) Five-angled Dodder (Cuscuta pentagona)

Turpentine spring-parsley (Cymopterus terebinthinus). Turpentine spring-parsley (Cymopterus terebinthinus)

pink lady's slipper, Cypripedium acaule. Pink lady's slipper (Cypripedium acaule)

Clustered Lady’s Slipper (Cypripedium fasciculatum) Clustered Lady’s Slipper (Cypripedium fasciculatum)

Mountain Lady's Slipper Mountain Lady's Slipper (Cypripedium montanum)

Showy Lady’s Slipper (Cypripedium reginae). Showy Lady’s Slipper (Cypripedium reginae)