Jack Dykinga / Foothills of the Temblor Range, carpeted with Coreopsis (yellow) and Purple Owl's Clover (Castilleja exserta) flowers. Carrizo Plain, California, USA. 30th March 2019.

Jack Dykinga / Indian paintbrush (Castilleja sp.) flowers amid boulders in a stream, in narrow canyon with conifers in background Grand Staircase-Escalante National Monument, Utah, USA.

Floris van Breugel / Paintbrush (Castilleja parviflora) flowering in withered sage bush, White Mountains, California, USA, July

Sean Crane / Hoary Marmot (Marmota caligata) feeding on Indian Paintbrush (Castilleja coccinea) flowers, Mount Rainier National Park, Washington

Jack Dykinga / Wildflower meadow with Silvery lupin {Lupinus argenteus}, Indian paintbrush {Castilleja miniatus} and Alpine penstemon {Penstemon alpinus} Rio Grande National Forest, Colorado, USA

Tim Fitzharris / Pointed Phlox (Phlox cuspidata) and Indian Paintbrushes (Castilleja miniata) in bloom, Hill Country, Texas

Tim Fitzharris / Paintbrush (Castilleja sp) and the Organ Rock, Arches National Park, Utah

Tim Fitzharris / Sand Bluebonnet (Lupinus subcarnosus) and Paintbrush (Castilleja sp) flowers, Hill Country, Texas

Phil Savoie / Indian paintbrush (Castilleja angustifolia) flower, Beaverhead National Forest, Montana, USA. July.

Heather Angel / Texas bluebonnets (Lupinus texensis) and Indian paintbrush (Castilleja coccinea) amongst wildflowers in ditch beside byway. Rains triggered germinaton of annual seeds. Cuero, Texas, USA. April.

Jouan Rius / Indian paintbrush in flower (Castilleja coccinea), Capitol Reef National Park, Utah, USA, April.

Alex Hyde / (Castilleja irasuensis) flowering next to the crater rim of Volcano Irazu, 3400m. Costa Rica

Mike Read / Alpine paintbrush (Castelleja rhexifolia) among grasses at roadside, The Grand Loop, Yellowstone National Park, Wyoming USA June

Mike Read / Sulphur paintbrush (Castilleja sulphurea) in alpine meadow near Mount Washburn, The Grand Loop Yellowstone National Park, Wyoming, USA June

Gerrit Vyn / Indian paintbrush (Castilleja) in flower in sagebrush-steppe. Sublette County, Wyoming, USA. June.

Tim Fitzharris / Indian Paintbrush (Castilleja miniata) and Mountain Bluebells (Mertensia ciliata) flowering, American Basin, Colorado

Sean Crane / Broadleaf Lupin (Lupinus latifolius) and Mountain Indian Paintbrush (Castilleja parviflora) flowers in meadow, Mount Rainier National Park, Washington

Kirkendall-Spring / Paintbrush flowers (Castilleja) in bloom, Canyon Creek Meadows below Three Finger Jack, Mount Jefferson Wilderness. Oregon.

Floris van Breugel / Mt Rainier and a lenticular cloud at sunrise with lupins (Lupinus latifolius) and pink paintbrushes (Castilleja parviflora), Grand Park, Mount Rainier National Park, Washington, USA. August 2008.

Juan Carlos Munoz / Indian paintbrush flowers (Castilleja) growing in rock face, Red Rock Canyon, Clark County, Nevada, USA, March.

Juan Carlos Munoz / Indian paintbrush flowers (Castilleja) growing in rock face, Red Rock Canyon, Clark County, Nevada, USA, March.

MYN / Krista Schlyer / Western Yellow Paintbrush (Castilleja occidentalis) Rocky Mountain National Park, Colorado, Rocky Mountain Bioblitz August 2012. Meetyourneighbours.net project

Tim Fitzharris / Sand Bluebonnet (Lupinus subcarnosus) and Indian Paintbrush (Castilleja miniata) flowers, Texas

MYN / David Hunter / Indain Paintbrush (Castilleja coccinea) flowers, Sierra Nevada Mountains, California, USA, July. meetyourneighbours.net project

Kirkendall-Spring / Meadow flowers in mist at Indian Bar, Mount Rainier National Park, Washington, USA, August 2009

Rob Tilley / Wild flower meadow with Lupin, Paintbrush and Bistort, Paradise Mt. Rainier NP, Washington, USA, August 2010

Marie Read / Indian Paintbrush (Castilleja coccinea) flowering amid dead Sagebrush (Artemisia tridentata) stems, on the desert floor, Mono Lake Basin, California, USA. (Paintbrush grows as a partial root-parasite...

Shattil & Rozinski / Wyoming Paintbrush (Castilleja linariifolia) in flower, Wyoming, USA, North America

Tim Fitzharris / Mountain Indian Paintbrush (Castilleja parviflora) flowers, Albion Basin, Wasatch Range, Utah

Tim Fitzharris / Mountain Indian Paintbrush (Castilleja parviflora) and daisies, Governor Basin, Colorado

Tim Fitzharris / Mountain Indian Paintbrush (Castilleja parviflora) and daisies, Governor Basin, Colorado

Tim Fitzharris / Mountain Indian Paintbrush (Castilleja parviflora) flowers, Governor Basin, Colorado

Tim Fitzharris / Mountain Indian Paintbrush (Castilleja parviflora) flowers, Albion Basin, Wasatch Range, Utah

Donald M. Jones / Calliope Hummingbird (Stellula calliope) female feeding on Indian Paintbrush (Castilleja attenuata), western Montana

Donald M. Jones / Black-chinned Hummingbird (Archilochus alexandri) female feeding on Indian Paintbrush (Castilleja attenuata), western Montana

David Welling / Wyoming paintbrush plant {Castilleja linariifolia} Zion NP, Utah, USA

Rolf Nussbaumer / Wildflowers in alpine meadow - Heartleaf Arnica {Arnica cordifolia}, Indian Paintbrush {Castilleja sp} and Bistort {Persicaria sp}, Ouray, San Juan Mountains, Rocky Mountains, Colorado, USA, July 2007

Shattil & Rozinski / Broadtail hummingbird {Selasphorus platycercus} hovering and feeding at Indian Paintbrush flower, Colorado, USA

Tim Fitzharris / Indian Paintbrush (Castilleja coccinea) close up of bloom, North America

Tim Fitzharris / Indian Paintbrush (Castilleja coccinea) blooming, Texas

Tim Fitzharris / Indian Paintbrush (Castilleja coccinea) and Foxtail Barley (Critesion jubatum) field, Texas

George McCarthy / Indian Paintbrush (Castilleja coccinea) in flower, Zion Valley, Arizona, USA

Rolf Nussbaumer / Buff-bellied Hummingbird (Amazilia yucatanensis) feeding on Indian Paintbrush (Castilleja coccinea), Lake Corpus Christi, Texas, USA. May 2003

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) and Indian Paintbrush (Castilleja miniata) wildflower meadow looking towards Mount Sneffels Wilderness, Yankee Boy Basin, Colorado

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) and Indian Paintbrush (Castilleja miniata) beside stream, Yankee Boy Basin, Colorado

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) Indian Paintbrush (Castilleja miniata) and Delphinium (Delphinium staphisagria) flowers beneath Potosi Peak, Yankee Boy Basin, Colorado

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) and Indian Paintbrush (Castilleja miniata) beside stream, Yankee Boy Basin, Colorado

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) Indian Paintbrush (Castilleja miniata) and Delphinium (Delphinium staphisagria) flowers beneath Potosi Peak, Yankee Boy Basin, Colorado

Tim Fitzharris / Indian Paintbrush (Castilleja miniata) meadow at American Basin, Colorado

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) and Indian Paintbrush (Castilleja miniata) flowers in meadow, North America

Tim Fitzharris / Orange Sneezeweed (Hymenoxys hoopesii) and Indian Paintbrush (Castilleja miniata) wildflower meadow looking towards Mount Sneffels Wilderness, Yankee Boy Basin, Colorado

Shattil & Rozinski / Indian paintbrush flowers {Castilleja coccinea} Colorado, USA

Tim Fitzharris / Sand Bluebonnet (Lupinus subcarnosus) and Indian Paintbrush (Castilleja miniata) flowers in bloom, Hill Country, Texas

Tim Fitzharris / Paintbrush (Castilleja sp) and Bulbous Barley (Hordeum murinum), Hill Country, Texas

Tim Fitzharris / Sand Bluebonnet (Lupinus subcarnosus) and Indian Paintbrush (Castilleja miniata) flowers in bloom, Hill Country, Texas

Tim Fitzharris / Pointed Phlox (Phlox cuspidata) and Indian Paintbrushes (Castilleja miniata) in bloom, Hill Country, Texas

Yva Momatiuk & John Eastcott / Sand Bluebonnet (Lupinus subcarnosus) and Paintbrush (Castilleja sp) flowers in spring meadow, Hill Country, Texas

Yva Momatiuk & John Eastcott / Indian Paintbrush (Castilleja attenuata) and Texas Bluebonnet (Lupinus texensis) field, Hill Country, Texas

Yva Momatiuk & John Eastcott / Indian Paintbrush (Castilleja attenuata) and Texas Bluebonnets (Lupinus texensis) next to dirt road, Hill Country, Texas

Yva Momatiuk & John Eastcott / Indian Paintbrush (Castilleja attenuata) in bloom, close-up, Hill Country, Texas

Yva Momatiuk & John Eastcott / Indian Paintbrush (Castilleja attenuata) in bloom, close-up, Hill Country, Texas

Yva Momatiuk & John Eastcott / Indian Paintbrush (Castilleja attenuata) in bloom, close-up, Hill Country, Texas

Tim Fitzharris / Fireweed (Chamerion angustifolium) Asters and Paintbrush (Castilleja sp), North America

Tim Fitzharris / Sand Bluebonnet (Lupinus subcarnosus) and Paintbrush (Castilleja sp) flowers, Hill Country, Texas

Tim Fitzharris / Indian Paintbrush (Castilleja miniata) surrounded by pine cones, South Rim, Grand Canyon National Park, Arizona

Jeff Foott / Desert Indian Paintbrush (Castilleja chromosa) and Yellow Desert Parsley (Pteryxia terebinthina) flowering in lava field, Craters of the Moon National Monument, Idaho

Scott Leslie / Desert Indian Paintbrush (Castilleja chromosa) flowering, North America

Tim Fitzharris / Mountain Indian Paintbrush (Castilleja parviflora) flowering, San Juan Mountains, Colorado

Tim Fitzharris / Larkspur (Delphinium sp) and Indian Paintbrush (Castilleja coccinea) flowering in alpine meadow, Potosi Peak, Yankee Boy Basin, Colorado

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Brittlebush (Encelia farinosa) and Owl's clover (Castilleja exserta) in flower amongst Saguaro cactus (Carnegiea gigantea) studded slopes, Sonoran Desert, Tonto National Monument, Arizona, USA, A...

Jack Dykinga / Lupine (Lupinus sp.), Owl's clover (Castilleja exserta venusta) and Mexican poppies (Eschscholzia californica mexicana) in flower in meadow, Sonoran Desert National Monument, Arizona, USA, March...

Jack Dykinga / Tickseed (Coreopsis sp.) and Owl clover (Castilleja exserta) carpeting the Carrizo Plain in the foothills of the Temblor Range, Caliente Range foothills. California, USA. March.

Kirkendall-Spring / Paintbrush (Castilleja sp.) and Lupine (Lupinus sp.) flowers blooming along the Loowit Trail (#216) in the blast zone, Mount St Helens National Volcanic Monument, Cascade Mountains, Washington, USA. J...

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) flowers, Rocky Mountains, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) and Rocky Mountain Alpine Fleabane (Erigeron grandiflorus) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) and Rocky Mountain Alpine Fleabane (Erigeron grandiflorus) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) and Rocky Mountain Alpine Fleabane (Erigeron grandiflorus) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) flowers in alpine zone, Rocky Mountains, Colorado

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) and Rocky Mountain Alpine Fleabane (Erigeron grandiflorus) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) and Rocky Mountain Alpine Fleabane (Erigeron grandiflorus) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Splitleaf Indian Paintbrush (Castilleja rhexifolia) flowers, Yellowstone National Park, Wyoming

Jeff Foott / Colorado Blue Columbine (Aquilegia caerulea), Splitleaf Indian Paintbrush (Castilleja rhexifolia) and Mountain Bluebell (Mertensia ciliata) flowers, Colorado

Claudio Contreras / Indian paintbrush (Castilleja fruticosa), Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

Claudio Contreras / Indian paintbrush (Castilleja fruticosa), Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

John Shaw / Indian paintbrush (Castilleja), balsamroot (Balsamorhiza sagittata), and lupin flowers (Lupinus sp) in the Columbia River Gorge, Oregon, USA. April.

Jack Dykinga / Narrow-leaved indian paintbrush (Castilleja) flowering among backlit grasses, and Tufa formations, Mono Lake Tufa State, California, USA.L

Mike Read / Indian paintbrush (Castilleja linariaefolia) flowering on roadside bank near Signal Mountain, Grand Teton National Park, Wyoming, USA, June.