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About Cobwebby Indian Paintbrush
Cobwebby Indian paintbrush (Castilleja arachnoidea), also called cobwebby paintbrush, is a small native perennial wildflower with woolly gray-green foliage and unusual cobweb-like hairs around the flower cluster. Like other paintbrushes, its most colorful parts are not true petals. They are leafy bracts surrounding the smaller flowers, giving the plant its painted-brush look.
This species is usually low-growing, often only a few inches to about a foot tall. Its narrow leaves may be simple or slightly lobed, and the whole plant can look softly fuzzy or silvery because of its white-woolly hairs. The bracts may be yellowish, dull red, pinkish, or purplish, while the small flowers tucked among them can be greenish-yellow to purplish-red.
Cobwebby Indian paintbrush is also hemiparasitic, meaning it can photosynthesize but also connects to the roots of nearby plants to take some water and nutrients. That makes it part wildflower, part botanical pickpocket, wearing a fuzzy little disguise. In a coloring page, it offers woolly texture, mountain-meadow color, narrow leaves, and a distinctive cobwebbed flower head.
Where Cobwebby Indian Paintbrush Grows
Cobwebby Indian paintbrush is native to western North America, especially northern California, Nevada, and southern Oregon. In California, it is associated with mountain and high-elevation habitats, including the Klamath Ranges, Cascade Range, Sierra Nevada high country, Great Basin region, and Modoc Plateau.
This plant grows in open mountain habitats such as subalpine meadows, alpine fell-fields, lodgepole pine forest openings, red fir forest, dry slopes, rocky places, and open montane clearings. It is best imagined in bright mountain light, tucked among grasses, sedges, low shrubs, stones, and scattered conifers.
Because paintbrushes are hemiparasitic, they often grow best near compatible neighboring plants rather than alone in bare soil. In a natural or restoration-style planting, cobwebby Indian paintbrush belongs with mountain meadow companions such as native grasses, sedges, lupines, buckwheats, penstemons, yarrow, sagebrush, and open conifer-edge plants.
Pollinators It Supports
Cobwebby Indian paintbrush belongs to a group of paintbrushes that is generally more associated with bee pollination than the bright red, hummingbird-focused paintbrushes. Its flowers are partly hidden among colorful bracts, so the plant may look showier from a distance than the actual flowers are up close. Bees visiting paintbrush flowers may include bumble bees, mason bees, mining bees, and sweat bees.
Good regional pollinator examples to show with this plant include the yellow-faced bumble bee (Bombus vosnesenskii), black-tailed bumble bee (Bombus melanopygus), small mason bees such as Osmia species, mining bees such as Andrena species, and sweat bees such as Lasioglossum species. In mountain meadows, small flies and beetles may also visit nearby flowers and shelter among the low vegetation.
Cobwebby Indian paintbrush also has butterfly and moth value. It is listed as a host plant for the Oregon gem moth (Heliothis oregonica) and the northern checkerspot butterfly (Chlosyne palla). These relationships make it useful to show not only with adult insects at the flowers, but also with caterpillars feeding on or near the plant. For a coloring page, pair it with a bumble bee, mason bee, northern checkerspot, Oregon gem moth, or a tiny caterpillar among the woolly bracts.
Coloring Tips
Color the woolly foliage gray-green, sage green, silvery green, or pale blue-green. Use soft shading or tiny pale strokes to suggest the cobwebby hairs on the leaves, stems, and flower cluster. The plant should look fuzzy rather than glossy.
The bracts can be pale yellow, cream-yellow, dusty rose, dull red, pinkish-purple, or muted magenta depending on the plant. The small flowers tucked between the bracts can be greenish-yellow, yellow, purple-red, or muted reddish tones. This is a good species for layered color: soft gray-green foliage with warmer yellow, rose, or red-purple accents near the top.
For the background, place cobwebby Indian paintbrush in a high mountain meadow, rocky slope, lodgepole pine opening, red fir forest edge, or alpine clearing. Add stones, bunchgrasses, sedges, lupines, buckwheats, pine needles, or distant mountain shapes. To show wildlife value, include a yellow-faced bumble bee, black-tailed bumble bee, northern checkerspot butterfly, or Oregon gem moth near the flower cluster.