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

colleagues paintbrush, collegial paintbrush

Lassen paintbrush, Mt. Lassen paintbrush

Habit Herbs, perennial, 1.1–2.8 dm; from a woody caudex; with a taproot. Herbs, perennial, 0.8–2.1 dm; from a woody caudex; with slender, branching roots.
Stems

few to many, erect or ascending, short-decumbent at base, unbranched, hairs dense, spreading to erect, ± short, soft, usually stipitate-glandular, longer ones sometimes eglandular.

few to many, decumbent-based to erect, unbranched except for short, leafy axillary shoots, hairs sparse, spreading, long, soft, mixed with short stipitate-glandular ones.

Leaves

pale green to dull reddish maroon, linear to linear-lanceolate, 0.8–3.5 cm, not fleshy, margins plane, slightly involute, 0–3(–5)-lobed, apex acuminate;

lateral lobes ascending to spreading, linear-lanceolate, usually arising from distal 1/2 of blade, usually narrower than central lobe, apex acuminate to acute.

green to purple (sometimes different on stems of same plant), linear-lanceolate, 1–3.5 cm, not fleshy, margins plane, flat, 0(–3)-lobed, apex acute;

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

Inflorescences

10–40(–80 with age) × 0.5–2.5 cm;

bracts pale cream to pale greenish yellow throughout, often partly to entirely suffused with dull reddish purple to maroon, especially proximally, along veins, and with age, sometimes distal apices pale, dullish red, lanceolate to ovate, usually 3-lobed, central lobe sometimes with short teeth;

lobes spreading-ascending, linear-lanceolate, short to medium length, arising at or above mid length, apex acute.

2–4.5 × 1.5–2 cm;

bracts proximally greenish to dull brownish purple, distally pink to magenta or reddish purple, ovate, broadly lanceolate, or oblong, (0–)3–5-lobed;

lobes ascending to erect, lanceolate, medium length, arising near or above mid length, apex acute to rounded.

Corollas

straight, 16.5–25 mm;

tube 12–18 mm;

beak scarcely exserted, adaxially pale green to yellowish, 3–7 mm;

abaxial lip green, not inflated, grooved, 2.5 mm, 33–50% as long as beak;

teeth slightly incurved, white, 1 mm.

straight, 18–20 mm;

tube 14–15 mm;

abaxial lip sometimes partly exserted, beak usually exserted;

beak adaxially white, 7–10 mm, margins white or pale salmon;

abaxial lip pale green to yellow-green, inflated, pouches 3, shallow, central pouch shallowly grooved, visible through front cleft, 6–7 mm, 60–70% as long as beak;

teeth erect, white, 1–2 mm.

Calyces

pale cream to pale greenish yellow, sometimes reddish violet to maroon on distal segments and/or with a thin vertical strip of pale reddish violet to maroon along veins, 11–20 mm;

abaxial and adaxial clefts 7–12 mm, 60% of calyx length, deeper than laterals, lateral 0.5–1 mm, 5–10% of calyx length;

lobes triangular, apex acute to obtuse.

proximally brown or dull magenta, sometimes green, distally colored as bracts, 11–19 mm;

abaxial and adaxial clefts 9–10 mm, 55–60% of calyx length, deeper than laterals, lateral 2.5–5 mm, 15–25% of calyx length;

lobes oblong, apex rounded.

Stigmas

pale green.

2n

= 24.

Castilleja collegiorum

Castilleja lassenensis

Phenology Flowering late Jun–Jul. Flowering Jul–Sep.
Habitat Hummocks and margins of moist to wet meadows. Moist to wet meadows, shorelines, subalpine, volcanic soils.
Elevation 1700–1800 m. (5600–5900 ft.) 1500–2500 m. (4900–8200 ft.)
Distribution
from FNA
OR
[WildflowerSearch map]
from FNA
CA
Discussion

Castilleja collegiorum is endemic to a large meadow system in the southern Cascade Range of Klamath County. It is similar to C. cryptantha in Washington and C. lemmonii in California but differs from both in structural details of the inflorescence, calyx, bracts, and leaves.

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

Castilleja lassenensis is restricted to the Mt. Lassen area in Shasta and Tehama counties. See the discussion of 55. C. lemmonii for information on the relationship between these two species.

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

Source FNA vol. 17, p. 598. FNA vol. 17, p. 619.
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. 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. 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
Name authority J. M. Egger & S. Malaby: Phytoneuron 2015-33: 1, figs. 1–3, 9[left]. (2015) Eastwood: Leafl. W. Bot. 2: 244. (1940)
Web links