Flora of North America species comparison

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

Castilleja rupicola

Castilleja hololeuca
Castilleja rupicola

cliff Indian paintbrush, cliff paintbrush

Channel Islands paintbrush, island paintbrush, island white-felted paintbrush, white-felted paintbrush
Habit Herbs, perennial, (0.8–)1–2(–3) dm; from a woody caudex; with a taproot. Shrubs or subshrubs, 3–10 dm; from a woody caudex; with thick, woody roots.
Stems

many, decumbent to ascending, unbranched, sparsely pubescent, hairs spreading, wavy, fairly short, soft, eglandular, sometimes glabrous proximally.

many, erect to spreading, much-branched with many short axillary shoots, proximal stems reaching 1+ cm wide, white-felted, hairs dense, spreading to ± appressed, intertwined, long, soft, slightly branched, obscuring surface.
Leaves

purple to green, narrowly, rarely broadly, lanceolate, 1.4–4 cm, not fleshy, margins plane, flat to involute, (0–)3–5(–7)-lobed, apex acute to acuminate;

lobes divergent, spreading-ascending, linear, long, not much narrower than mid blade, often with secondary lobes, creating little frilly fans, apex acute or obtuse.

ash gray, leaves of previous year persisting on proximal stem, linear, older leaves sometimes broadly linear, 1–5 cm, not fleshy, margins plane, involute, 0-lobed, apex obtuse;

lobes ascending, linear-lanceolate, apex obtuse to rounded, sometimes acute.
Inflorescences

2–6 × 2–3.5 cm;

bracts proximally greenish or deep purple near base, distally red, scarlet, or crimson to red-orange, rarely orange, salmon, pink, or yellowish white, ovate to orbicular in outline, 5(–9)-lobed;

lobes spreading, linear to linear-lanceolate, long, arising below mid length, apex acute to rounded.

3–16 × 2–4 cm;

bracts pale gray-green throughout, or proximally pale gray-green, distally red or yellow, proximal linear, distal broader, often oblanceolate to obovate, (0–)3-lobed;

lobes spreading, linear to oblong, short to long, arising below mid length, apex rounded to truncate or acute.
Corollas

straight or slightly curved, 25–35(–45) mm;

tube 9–15 mm;

beak exserted, adaxially green, purplish, or yellow-green, 14–22 mm;

abaxial lip deep green, reduced, 0.5–2 mm, 6–12% as long as beak;

teeth incurved to erect, green, 0.5 mm.

slightly curved in proximal 1/3, 14–26(–31) mm;

tube 9–17 mm;

abaxial lip not exserted, beak exserted;

beak adaxially green to yellowish, 11–14 mm;

abaxial lip ascending, deep green, reduced, 2–3 mm, less than 33% as long as beak;

teeth reduced to apiculations, deep green, 1–1.5 mm.
Calyces

proximally purple, green, or whitish, distally colored as bract lobes, 15–25 mm;

abaxial and adaxial clefts 8 mm, ca. 40–50% of calyx length, deeper than laterals, lateral 1–5 mm, 10–20% of calyx length;

lobes triangular, apex obtuse or acute.

colored as bracts, with conspicuous whitish veins, 14–18(–20) mm;

abaxial and adaxial clefts 5–12 mm, 30–67% of calyx length, deeper than laterals, lateral 0 mm or nearly so, ca. 0% of calyx length;

lobes linear-lanceolate, apex rounded, truncate, or emarginate.

Castilleja rupicola

Castilleja hololeuca
Phenology Flowering (May–)Jun–Sep. Flowering Mar–Oct.
Habitat Sunny rocky slopes, scree, talus, ledges, fellfields, subalpine to alpine. Coastal sage scrub, chaparral slopes and flats, ledges, forest edges.
Elevation (200–)1000–2500 m. ((700–)3300–8200 ft.) 0–500 m. (0–1600 ft.)
Distribution
from FNA
OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Castilleja rupicola is usually found in the subalpine and lower alpine zones in the Cascade Range from extreme southern British Columbia south to northern Douglas County, Oregon. Though it can be numerous where it occurs, the species as a whole is uncommon. One atypical population occurs in a moist, shaded, mossy, north-facing ravine on the Oregon side of the Columbia River Gorge, at less than 250 m. These plants often bear secondary divisions on deeply dissected leaves and bracts.

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

Castilleja hololeuca is endemic to the four major islands of the northern Channel Islands. It is similar to C. lanata, a mostly Mexican species that reaches Arizona, New Mexico, and southwest Texas. However, C. hololeuca appears to be more closely related to C. foliolosa, a species of the California mainland. These three species, and C. galehintoniae G. L. Nesom of Nuevo León, all share a distinctive, thick indument of pale, matted, and often branched hairs on the stems and leaves. Large individuals of C. hololeuca form thick, woody trunks. On Anacapa Island, closest to the mainland, red-flowered forms of C. hololeuca predominate. On Santa Cruz Island, to the west, both red- and yellow-bracted forms are fairly common, usually in separate populations. Further offshore, on San Miguel and Santa Rosa islands, most plants are yellow to, occasionally, peach in coloration. Reports of this species from Santa Barbara and Santa Catalina Islands are referable to other species, mostly C. foliolosa. Populations of C. hololeuca historically declined from grazing by introduced game and livestock species. The plants are recovering well, following removal of the grazing animals, and are now common in many areas, especially on San Miguel Island.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 653. FNA vol. 17, p. 614.
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. pruinosa, C. puberula, C. pulchella, C. purpurascens, C. purpurea, C. raupii, C. revealii, C. rhexiifolia, C. rigida, C. rubicundula, C. rubida, 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. 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. 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. lanata subsp. hololeuca
Name authority Piper: Erythea 6: 45. (1898) — (as Castilleia) Greene: W. Amer. Sci. 3: 3. (1886) — (as Castilleia)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

The species comparison tool is brought to you by:
Northwest Wildflowers