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California paintbrush, coast Indian paintbrush, coast paintbrush, Indian paintbrush

Peirson's paintbrush

Habit Herbs, perennial, 1.4–6 dm; caudex woody; with a taproot. Herbs, perennial, 0.6–3(–4) dm; from a woody caudex; with a taproot.
Stems

few to many, erect to ascending, unbranched or branched at proximal nodes, sometimes with short, leafy axillary branches, hairs sparse to dense, spreading, short and long, soft to stiff, unbranched, sometimes branched, eglandular, sometimes stipitate-glandular.

few to several, erect or ascending, unbranched, sometimes branched, hairs dense distally, less so proximally, spreading, long, soft, eglandular, also mixed with short stipitate-glandular ones distally.

Leaves

green or purplish, sometimes red-brown, linear or linear-oblong to broadly lanceolate, 2–13 cm, not or ± fleshy, margins wavy or plane, flat or involute, 0–5-lobed, sometimes with small secondary lobes, short, leafy axillary shoots common, usually conspicuous, apex acuminate or acute to rounded;

lobes spreading, linear to lanceolate, lateral lobes almost as wide as mid blade, apex acute to rounded.

green to purple, narrowly to broadly lanceolate to oblong, (0.7–)1.5–4.2(–5) cm, not fleshy, margins plane, flat or involute, (0–)3(–5)-lobed, apex acuminate;

lobes ascending-spreading, narrowly lanceolate to linear, apex acute.

Inflorescences

3–25(–30) × 1.5–5 cm;

bracts proximally green or deep purple, distally red, crimson, scarlet, pink, pinkish purple, pinkish red, or yellow, sometimes rose magenta, red-orange, or orange, oblanceolate or obovate to oblong or lanceolate, (0–)3–5(–7)-lobed;

lobes spreading to ascending, linear to obovate, long, proximal lobes at or arising below mid length, apices acute to obtuse, center lobe sometimes rounded.

2.5–7.5(–15) × 1.5–3 cm;

bracts proximally greenish to dull reddish, distally bright red, orange, or pale orange, sometimes yellowish or dull red, broadly lanceolate to oblong, 3–5-lobed;

lobes ascending, linear to lanceolate, ± long, arising above mid length, sometimes below mid length on proximal bracts, central lobe apex acute, rarely narrowly obtuse, lateral ones acute.

Pedicels

0 mm or nearly so.

Corollas

straight or ± curved, 17–40 mm;

tube 10–15 mm;

beak long-exserted to subequal to calyx, adaxially green, 7–20 mm, puberulent, eglandular;

abaxial lip deep green to reddish, brown, or deep purple, reduced, inconspicuous, included in calyx, 1.5–3 mm, 15–25% as long as beak;

teeth ascending, green, 0.5–2 mm.

slightly curved, 15–28 mm;

tube 13–15 mm;

beak exserted, adaxially yellow or yellow-green, 7–8 mm;

abaxial lip yellow or deep green, reduced, slightly inflated, pouched, protruding out abaxial cleft, 1–2.5 mm, 13–33% as long as beak;

teeth erect or curved, yellow or green, 0.7–1 mm.

Calyces

proximally pale or green, distally as in distal portion of bracts, 14–35 mm;

abaxial and adaxial clefts 6–22 mm, 33–50% of calyx length, deeper than laterals, lateral 2–7 mm, 15–25% of calyx length;

lobes lanceolate or oblong, apex acute to obtuse or rounded, sometimes curved upward.

proximally light green or yellow, distally yellow or colored as bracts, 12–20 mm;

abaxial and adaxial clefts 5–9 mm, 40–50% of calyx length, deeper than laterals, lateral (1.5–)3–5.8 mm, 10–30% of calyx length;

lobes oblong, apex acute to obtuse.

2n

= 48, 72, 96.

= 24.

Castilleja affinis

Castilleja peirsonii

Phenology Flowering Jun–Sep.
Habitat Moist to wet meadows, stream banks, lakeshores, montane to alpine.
Elevation 1700–3400 m. (5600–11200 ft.)
Distribution
from FNA
CA; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 3 (3 in the flora).

Castilleja affinis is highly variable and one of the more common paintbrushes at lower elevations in California, west of the Sierra Nevada, from the northern coast south to northern Baja California. Some recent authors (for example, M. Wetherwax et al. 2012) include C. litoralis of the Pacific Northwest coast as a subspecies of C. affinis, but due to the high polyploid nature of C. litoralis and its significantly closer morphological resemblance to C. miniata var. dixonii, that treatment is not followed here. Also see the comments under 62. C. litoralis.

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

Castilleja peirsonii is endemic to the higher elevations in the Sierra Nevada of California and in Tahoe Meadows in adjacent Washoe County, Nevada. Plants with yellow bracts in the southern portion of the range were named C. carterae. Castilleja peirsonii has shorter, wider corolla beaks than the related C. parviflora. In addition to the corolla shape differences, C. peirsonii also has red to yellow bracts and fairly bright yellow corollas, especially on the beaks, while C. parviflora has purple, pink, or white bracts and greenish corolla tubes and dorsal beak surfaces, with the beak margins pink, purple, or white. Reports from outside the Sierra Nevada in California and immediately adjacent Nevada are misidentifications. Castilleja peirsonii sometimes hybridizes with C. lemmonii in meadows where both species often occur in large numbers.

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

Key
1. Stem hairs branched; distal portion of bracts usually pink to pinkish purple or pinkish red; coastal San Luis Obispo and Santa Barbara counties.
var. contentiosa
1. Stem hairs unbranched, rarely branched; distal portion of bracts usually bright red, red-orange, crimson, scarlet, or yellow; more widespread in w California.
→ 2
2. Distal portions of bracts bright red to red-orange, crimson, or scarlet, rarely yellow, orange, rose, magenta, or pinkish red; inflorescences (2.5–)3–5 cm wide; chaparral slopes, openings, open woods, coastal scrub, stabilized dunes; much of w California.
var. affinis
2. Distal portions of bracts yellow, rarely pink or pale red-orange, often becoming reddish tinted after anthesis; inflorescences 1.5–2.5 cm wide; serpentine substrates; San Francisco Bay region.
var. neglecta
Source FNA vol. 17, p. 582. FNA vol. 17, p. 644.
Parent taxa Orobanchaceae > Castilleja Orobanchaceae > Castilleja
Sibling taxa
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. 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. 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. 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. affinis var. affinis, C. affinis var. contentiosa, C. affinis var. neglecta
Synonyms C. carterae
Name authority Hooker & Arnott: Bot. Beechey Voy., 154. (1833) Eastwood: Leafl. W. Bot. 1: 175. (1935) — (as peirsoni)
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