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Castilleja angustifolia

narrow-leaf paintbrush, northwestern Indian paintbrush, northwestern paintbrush, violet desert paintbrush

glowing Indian paintbrush, ornate paintbrush

Habit Herbs, perennial, 0.9–3.8(–4) dm; from a woody caudex; with a taproot. Herbs, annual, 1.7–3.5(–5) dm; with a thin taproot or fibrous root system.
Stems

few to many, ascending to erect, branched, especially near base, sometimes unbranched, hairs sparse to dense, spreading to retrorse, long, sometimes short, soft to stiff, usually mixed with short-glandular ones, sometimes viscid.

solitary or few to several, erect or ascending, often branched low on stem, unbranched distally, hairs appressed or retrorse, medium length, soft, eglandular, mixed with shorter stipitate-glandular ones.

Leaves

brown or purplish, sometimes green, linear to lanceolate or broadly lanceolate, 1.2–7(–7.5) cm, not fleshy, margins plane, sometimes ± wavy, involute or flat, (0–)3–5-lobed, rarely with secondary lobes, apex acuminate to rounded;

lobes spreading, oblong or lanceolate to linear-lanceolate, apex acute to rounded.

green or purple-tinged, proximal forming a rosette, linear-lanceolate to oblong or oblanceolate, 2–4 cm, not fleshy, clasping, margins wavy, sometimes plane, involute, 0-lobed, apex acuminate, acute, or obtuse.

Inflorescences

2.5–20 × 1.5–5 cm;

bracts proximally greenish or dull purplish, distally pink, magenta, pink-purple, reddish pink, pale yellow, pale yellow-orange, pale orange, or white, rarely reddish or orange-red, lanceolate to oblong, 3–5(–9)-lobed, sometimes with secondary lobes;

lobes spreading or ascending, oblanceolate or linear, proximal lobes often much longer than distal, proximal lobes arising below or a little above mid length, apex acute to rounded.

3–24 × 1.5–3 cm;

bracts proximally green, distally white, sometimes very pale yellow, often aging dull pink or dull red-purple, spatulate, 0-lobed, sometimes seeming lobed due to wavy margins, apex obtuse to rounded.

Corollas

straight, 18–27(–32) mm;

tube 8–17 mm;

beak usually long-exserted, adaxially green or pink, 8–15 mm;

abaxial lip deep green, reduced, inconspicuous, 1–2.5 mm, 5–20% as long as beak;

teeth incurved to ascending, deep green, 0.5–1.5 mm.

slightly curved, 22–24 mm;

tube 10–13 mm;

beak exserted, adaxially green, 5–10 mm;

abaxial lip pale greenish, reduced, pouches 3, 0.5–1.5 mm, 5–10% as long as beak;

teeth slightly incurved, reduced, pale greenish to white, 0.3–0.7 mm.

Calyces

proximally green, yellow, brown, or purple, lobes colored as bract lobes, sometimes with a yellow band between proximal and distal parts, 13–25(–28) mm;

abaxial clefts 3–8 mm, adaxial 5–9(–12) mm, clefts 30–50% of calyx length, deeper than laterals, lateral (1–)1.5–4(–5) mm, 10–25% of calyx length;

lobes lanceolate to oblong, abaxials wider than adaxials, apex acute to rounded.

green throughout or distal margin white aging pink, 15–17 mm;

abaxial and adaxial clefts 6–14 mm, 35–45% of calyx length, deeper than laterals, lateral 0(–0.7) mm, 0(–5)% of calyx length;

lobes short-triangular, abaxial segments longer than adaxials, apex acute to obtuse or rounded.

2n

= 24.

Castilleja angustifolia

Castilleja ornata

Phenology Flowering Jul–Sep.
Habitat Seasonally damp ground, dry or sandy grasslands.
Elevation 1500–2100 m. (4900–6900 ft.)
Distribution
from FNA
ID; MT; NV; OR; SD; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
NM; Mexico (Chihuahua, Durango)
[BONAP county map]
Discussion

Varieties 3 (3 in the flora).

Much confusion exists concerning Castilleja angustifolia and the closely related C. chromosa. Sometimes C. chromosa is treated as a variety of C. angustifolia, using the name C. angustifolia var. dubia. The latter name is used here to represent a different assemblage of plants, not including C. chromosa. At other times, C. chromosa is synonymized completely under C. angustifolia. However, the two species are in most cases easily separable, and where they are sympatric there is little evidence of intergradation. Both C. angustifolia var. dubia and C. chromosa are accepted here. See additional comments under 3b. C. angustifolia var. dubia and 15. C. chromosa.

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

Castilleja ornata is known from Chihuahua and northern Durango, Mexico, but much of its seasonally moist grassland habitat is now altered by grazing or agriculture, and there are no recent sightings of the species south of the United States border. There is a recently discovered population in southwestern New Mexico, in the southern Animas Valley of Hidalgo County. While very rare, C. ornata lacks federal protection. The small Animas Valley population is the last known extant occurrence, and this population was reduced to two individuals in a census conducted in 2017 (D. Roth, pers. comm.). The species appears to be critically endangered globally and in need of conservation management.

The inflorescences of Castilleja ornata have pale greenish bracts with white apices when young, but the apices often become pale pink to dull reddish with age. Its pubescence, wavy-margined leaves, and unusual bract color also distinguish C. ornata. Castilleja exserta and C. minor are the only other annual paintbrushes in New Mexico and differ from C. ornata by the color of their floral bract apices, which are usually pink to red-purple in C. exserta and bright red in C. minor.

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

Key
1. Bracts distally usually pink to pink-purple; s Idaho, sw Montana, se Oregon, nw Wyoming.
var. angustifolia
1. Bracts distally yellow, yellow-orange, pale orange, white, pink, reddish pink, or magenta; se Idaho, e Nevada, sw South Dakota, w Utah, ec Wyoming.
→ 2
2. Bracts distally usually yellow to pale orange or white; ec Wyoming, adjacent sw South Dakota.
var. dubia
2. Bracts distally usually yellow, yellow-orange, white, pink, or reddish pink; se Idaho, e Nevada, w Utah.
var. flavescens
Source FNA vol. 17, p. 586. FNA vol. 17, p. 636.
Parent taxa Orobanchaceae > Castilleja Orobanchaceae > Castilleja
Sibling taxa
C. affinis, C. ambigua, 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. 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. angustifolia var. angustifolia, C. angustifolia var. dubia, C. angustifolia var. flavescens
Synonyms Euchroma angustifolia
Name authority (Nuttall) G. Don: Gen. Hist. 4: 616. 1837/1838 Eastwood: Proc. Amer. Acad. Arts 44: 571. (1909)
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