Flora of North America species comparison

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Castilleja subinclusa

Castilleja hololeuca

Franciscan paint brush, longleaf Indian paintbrush

Channel Islands paintbrush, island paintbrush, island white-felted paintbrush, white-felted paintbrush
Habit Herbs, perennial, 1.8–12 dm; from a woody caudex; with a taproot. Shrubs or subshrubs, 3–10 dm; from a woody caudex; with thick, woody roots.
Stems

solitary or few to many, erect to ascending, often leaning on nearby shrubs (var. jepsonii), unbranched or branched, often with small, leafy axillary shoots, hairs matted to spreading, short and long, soft, mixed with short stipitate-glandular ones.

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

green, pale gray-green, sometimes dull reddish purple, linear to narrowly, sometimes broadly, lanceolate, 2–10.5 cm, not fleshy, margins plane, sometimes ± wavy, flat or involute, 0(–3)-lobed, apex acuminate to acute;

lobes spreading, linear to short-lanceolate, often arising near mid length, apex acute to 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

3–30 × 1–7 cm;

bracts green or dull purple throughout, or proximally green or dull purple, distally bright red to orange-red, sometimes salmon, orange, or yellow, usually linear to lanceolate, distal sometimes broadly lanceolate to oblong or elliptic, 0(–3)-lobed;

lobes spreading to erect, linear to oblong or triangular, short or medium length, arising near or above mid length, apex acute to obtuse.

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

curved proximally, straight to slightly curved distally, 25–57 mm;

tube 15–29 mm;

beak subequal to or exceeding calyx but abaxial lip, beak, and often part of tube usually exserted out abaxial cleft;

beak adaxially green, yellow-green, or yellow, 13–21 mm, margins red, orange, or yellow;

abaxial lip green, yellow, reddish, blackish, or deep red-purple, reduced, protuberant, forming a platform, 1–2 mm, 5–25% as long as beak;

teeth ascending, green, purple sometimes with reddish tip, yellow, or blackish, 0.5–1 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 pale green, rarely pale purple, distally bright red or red-orange, rarely orange or yellow, or bright red or red-orange throughout, 20–42 mm;

abaxial clefts 13–27 mm, adaxial 7–17 mm, abaxial 40–70% of calyx length, adaxial 12–33% of calyx length, deeper than laterals, lateral 0–7.5 mm, 0–35% of calyx length;

lobes linear to narrowly triangular, strongly curved away from stem proximally and distally obviously curved toward stem, apex acute to acuminate to obtuse.

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.
2n

= 24, 48, 72, 96.

Castilleja subinclusa

Castilleja hololeuca
Phenology Flowering Mar–Oct.
Habitat Coastal sage scrub, chaparral slopes and flats, ledges, forest edges.
Elevation 0–500 m. (0–1600 ft.)
Distribution
from FNA
CA; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 3 (3 in the flora).

Castilleja subinclusa is divided into three varieties with somewhat discontinuous ranges. Identification of the varieties is often difficult when comparing only a single trait but is more easily accomplished when the characters are considered in a suite. The three varieties are also separable by range and habitat.

(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.)
Key
1. Corolla beaks adaxially bright yellow, sometimes greenish yellow near apex, margins yellow, rarely orange or red, strongly contrasting with color of calyces; stems and leaves greenish, sometimes dull reddish; lateral calyx clefts 0–4 mm; coastal scrub communities; coastal c California.
var. franciscana
1. Corolla beaks adaxially green to yellow-green, rarely yellow, margins red to orange, rarely yellow, not strongly contrasting with color of calyces; stems and leaves greenish, pale gray-green, or dull reddish; lateral calyx clefts 3–7.5 mm; dry, sandy or rocky slopes, desert scrub, foothill woodlands, chaparral, brushy openings in pine-oak woods; w foothills of Sierra Nevada in c California or sw California.
→ 2
2. Stems and leaves greenish, sometimes dull reddish; bracts (0–)3-lobed; brushy openings in pine-oak woods; mostly in w foothills of Sierra Nevada in c California.
var. subinclusa
2. Stems usually dull reddish; leaves usually pale gray-green to ± ash-colored; bracts 0(–3)-lobed; dry, sandy or rocky slopes, desert scrub, foothill woodlands, chaparral; sw California.
var. jepsonii
Source FNA vol. 17, p. 657. 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. rupicola, C. salsuginosa, C. scabrida, C. schizotricha, C. septentrionalis, C. sessiliflora, 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
Subordinate taxa
C. subinclusa var. franciscana, C. subinclusa var. jepsonii, C. subinclusa var. subinclusa
Synonyms C. lanata subsp. hololeuca
Name authority Greene: Pittonia 4: 2. (1899) — (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).



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