The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

frosted Indian paintbrush, frosted paintbrush, pruinose paintbrush

coast paintbrush, Oregon coast paintbrush, Pacific paintbrush

Habit Herbs to subshrubs, perennial, (1.2–)2–8 dm; from a woody caudex; with a taproot. Herbs, perennial, 1–9 dm; from a woody caudex; with a taproot.
Stems

several to many, erect or ascending, branched or unbranched, sometimes with inconspicuous, short, leafy axillary shoots, hairs ± dense, spreading to appressed, whitish or ashy gray, long, soft, much-branched, rarely unbranched, eglandular or obscurely glandular.

few to many, usually decumbent proximally, becoming ascending-erect, sometimes ascending, branched, sometimes with small, leafy axillary shoots, glabrate or ± pubescent distally, hairs sparse to moderately dense, spreading to ± appressed, short, soft, sometimes mixed with short-glandular ones below inflorescence.

Leaves

green, linear-lanceolate to narrowly or broadly lanceolate, 2–8 cm, not fleshy, margins plane to sometimes wavy, flat or involute, 0-lobed, sometimes 3–5-lobed distally, apex obtuse to rounded, sometimes acute;

lobes sometimes divergent, ascending-spreading, linear, apex acute.

green, lanceolate to oblong or narrowly ovate, (0.5–)3–8 cm, sometimes thickened, not fleshy, margins plane, sometimes ± wavy, flat to involute, 0(–3)-lobed, apex acute to rounded;

lobes ascending or spreading, linear, narrowly lanceolate to oblong or triangular, short, apex acute to obtuse.

Inflorescences

3–20 × 1.5–4 cm;

bracts proximally greenish, distally abruptly red, sometimes yellow, salmon, or orange-red, often with a narrow yellow medial band, lanceolate, broadly lanceolate, or oblong, 0–5-lobed;

lobes spreading to ascending, linear, long, arising near mid length, apex obtuse to acute.

2.5–21 × 3–5 cm;

bracts proximally green, distally bright red to crimson or orange-red, sometimes orange or pale yellow-orange, oblong to narrowly ovate or narrowly obovate, (0–)3–5-lobed, sometimes with a pair of small teeth;

lobes ascending, linear to oblong, medium length, arising in middle 1/3, central lobe apex obtuse to rounded or truncate, lateral ones ± acute.

Pedicels

0–6 mm.

Corollas

slightly curved, 20–51 mm;

tube 12–21 mm;

beak long-exserted, adaxially green, yellow, or red, 12–33 mm;

abaxial lip deep green, reduced, 1–2.5 mm, ca. 10% as long as beak;

teeth incurved to erect, white, yellow, or green, 0.5–2 mm.

straight or slightly curved, 23–38(–40) mm;

tube 10–20 mm;

abaxial lip often visible through front cleft, very rarely almost exserted, beak exserted;

beak adaxially green or yellowish, 10–16 mm, surface inconspicuously puberulent;

abaxial lip ascending, green, reduced, 1–2.5 mm, 10–20% as long as beak;

teeth erect or incurved, green or white, 1–2 mm.

Calyces

proximally green to yellow, distally and abruptly colored as in distal bracts, often with a central yellow band, 13–28 mm;

abaxial clefts 5–13 mm, adaxial 8–14 mm, clefts 33–70% of calyx length, deeper than laterals, lateral 3–9 mm, 20–25% of calyx length;

lobes lanceolate to triangular, apex acute to acuminate.

colored as bracts, 17–25(–30) mm;

abaxial and adaxial clefts (5–)7–15(–18) mm, 33–55% of calyx length, deeper than laterals, lateral 1–3(–5) mm, 5–10% of calyx length;

lobes broadly triangular to oblong, apex obtuse to acute or rounded.

2n

= 48.

= 120, 144.

Castilleja pruinosa

Castilleja litoralis

Phenology Flowering Mar–Aug. Flowering (Apr–)May–Aug(–Sep).
Habitat Dry flats, rocky slopes, talus, thickets, open forests and forest edges, usually over serpentine. Steep rocky slopes, headlands, ledges, sea cliffs, coastal scrub, dune swales, roadcuts.
Elevation 50–2600 m. (200–8500 ft.) 0–200 m. (0–700 ft.)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Castilleja pruinosa is a common and variable paintbrush at moderate elevations in the southern half of the Cascade Range, occurring westward in Oregon and in adjacent northwestern California. It is also found in the northern Sierra Nevada. The often dense pubescence of branched hairs distinguishes it from other similar species within its range. Castilleja gleasoni was sometimes included within C. pruinosa, but C. gleasoni is likely of hybrid origin and occurs only in the San Gabriel Mountains of southern California. There are significant morphological differences between C. gleasoni and C. pruinosa. Castilleja pruinosa forms occasional hybrids with C. applegatei var. pinetorum and with C. brevilobata. In some populations in Douglas and eastern Lane counties, Oregon, C. pruinosa forms introgressive swarms with C. hispida var. hispida.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Castilleja litoralis never ranges more than one to two kilometers from the sea, from Humboldt County, California, north to Pacific County, Washington, near the mouth of the Columbia River. It is a high polyploid complex, possibly incorporating the genomes of several species, including C. affinis, C. miniata, and possibly C. hispida. The coastal C. miniata var. dixonii is very similar ecologically and morphologically but replaces C. litoralis from southwestern Washington to southern British Columbia. Compared to C. litoralis, C. miniata var. dixonii usually has somewhat longer corollas and corolla beaks, the latter with a more conspicuously puberulent surface and deeper lateral calyx clefts. Castilleja litoralis has been included as a subspecies of C. affinis by some (for example, M. Wetherwax et al. 2012), but the morphological resemblance to that species is far more tenuous than it is to C. miniata var. dixonii. Considering their very similar morphologies, along with the fact that both C. litoralis (2n = 120, 144) and C. miniata var. dixonii (2n = 96, 144) apparently combine multiple genomes, strongly suggest that they would best be treated as a single entity. Should they be combined at the species level following additional research, the name C. dixonii has priority.

Castilleja litoralis is often associated with salal, Gaultheria shallon, on which it is likely parasitic.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 17, p. 647. FNA vol. 17, p. 624.
Parent taxa Orobanchaceae > Castilleja Orobanchaceae > Castilleja
Sibling taxa
C. affinis, C. ambigua, C. angustifolia, C. applegatei, C. aquariensis, C. arachnoidea, C. attenuata, C. brevilobata, C. brevistyla, C. campestris, C. cervina, C. chambersii, C. chlorotica, C. christii, C. chromosa, C. chrymactis, C. chrysantha, C. cinerea, C. citrina, C. coccinea, C. collegiorum, C. covilleana, C. crista-galli, C. cryptantha, C. cusickii, C. densiflora, C. dissitiflora, C. disticha, C. elata, C. elegans, C. elmeri, C. exserta, C. flava, C. foliolosa, C. fraterna, C. genevieveana, C. glandulifera, C. gleasoni, C. gracillima, C. grisea, C. haydenii, C. hispida, C. hololeuca, C. hyperborea, C. indivisa, C. integra, C. kaibabensis, C. kerryana, C. kraliana, C. lacera, C. lanata, C. lasiorhyncha, C. lassenensis, C. latifolia, C. lemmonii, C. leschkeana, C. levisecta, C. linariifolia, C. lindheimeri, C. lineariloba, C. lineata, C. litoralis, C. lutescens, C. martini, C. mendocinensis, C. mexicana, C. miniata, C. minor, C. mogollonica, C. mollis, C. montigena, C. nana, C. nelsonii, C. nervata, C. nivea, C. occidentalis, C. oresbia, C. organorum, C. ornata, C. pallescens, C. pallida, C. parviflora, C. parvula, C. patriotica, C. peckiana, C. peirsonii, C. pilosa, C. plagiotoma, C. praeterita, C. puberula, C. pulchella, C. purpurascens, C. purpurea, C. raupii, C. revealii, C. rhexiifolia, C. rigida, C. rubicundula, C. rubida, C. rupicola, C. salsuginosa, C. scabrida, C. schizotricha, C. septentrionalis, C. sessiliflora, C. subinclusa, C. suksdorfii, C. tenuiflora, C. tenuis, C. thompsonii, C. tomentosa, C. uliginosa, C. unalaschcensis, C. victoriae, C. viscidula, C. wightii, C. wootonii, C. xanthotricha
C. affinis, C. ambigua, C. angustifolia, C. applegatei, C. aquariensis, C. arachnoidea, C. attenuata, C. brevilobata, C. brevistyla, C. campestris, C. cervina, C. chambersii, C. chlorotica, C. christii, C. chromosa, C. chrymactis, C. chrysantha, C. cinerea, C. citrina, C. coccinea, C. collegiorum, C. covilleana, C. crista-galli, C. cryptantha, C. cusickii, C. densiflora, C. dissitiflora, C. disticha, C. elata, C. elegans, C. elmeri, C. exserta, C. flava, C. foliolosa, C. fraterna, C. genevieveana, C. glandulifera, C. gleasoni, C. gracillima, C. grisea, C. haydenii, C. hispida, C. hololeuca, C. hyperborea, C. indivisa, C. integra, C. kaibabensis, C. kerryana, C. kraliana, C. lacera, C. lanata, C. lasiorhyncha, C. lassenensis, C. latifolia, C. lemmonii, C. leschkeana, C. levisecta, C. linariifolia, C. lindheimeri, C. lineariloba, C. lineata, C. lutescens, C. martini, C. mendocinensis, C. mexicana, C. miniata, C. minor, C. mogollonica, C. mollis, C. montigena, C. nana, C. nelsonii, C. nervata, C. nivea, C. occidentalis, C. oresbia, C. organorum, C. ornata, C. pallescens, C. pallida, C. parviflora, C. parvula, C. patriotica, C. peckiana, C. peirsonii, C. pilosa, C. plagiotoma, C. praeterita, C. pruinosa, C. puberula, C. pulchella, C. purpurascens, C. purpurea, C. raupii, C. revealii, C. rhexiifolia, C. rigida, C. rubicundula, C. rubida, C. rupicola, C. salsuginosa, C. scabrida, C. schizotricha, C. septentrionalis, C. sessiliflora, C. subinclusa, C. suksdorfii, C. tenuiflora, C. tenuis, C. thompsonii, C. tomentosa, C. uliginosa, C. unalaschcensis, C. victoriae, C. viscidula, C. wightii, C. wootonii, C. xanthotricha
Synonyms C. affinis subsp. litoralis, C. wightii subsp. litoralis
Name authority Fernald: Erythea 6: 50. (1898) — (as Castilleia) Pennell: Proc. Acad. Nat. Sci. Philadelphia 99: 183. (1947)
Web links