Castilleja peirsonii

Eastwood

Leafl. W. Bot. 1: 175. 1935.

Common names: Peirson’s paintbrush
IllustratedEndemic
Synonyms: Castilleja carterae Beane
Treatment appears in FNA Volume 17. Treatment on page 644. Mentioned on page 576, 577, 643.

Herbs, perennial, 0.6–3 (–4) dm; from a woody caudex; with a taproot. Stems 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 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 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. Calyces 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. Corollas 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. 2n = 24.


Phenology: Flowering Jun–Sep.
Habitat: Moist to wet meadows, stream banks, lakeshores, montane to alpine.
Elevation: 1700–3400 m.

Discussion

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.

Selected References

None.

Lower Taxa

None.

"arising" is not a number.

... more about "Castilleja peirsonii"
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
green +, deep +  and yellow +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Acute (?) +  and Obtuse (?) +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
Eastwood +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not +, leathery +  and fleshy +
red;dull;yellowish;proximally greenish;dull reddish distally bright red orange or pale orange +
3-5-lobed +, broadly lanceolate +  and oblong +
colored +, yellow +  and light green +
2-lobed +, lobed +  and tubular +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
Peirson’s paintbrush +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
1.5 cm15 mm <br />0.015 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
Calif. +  and Nev. +
1700–3400 m. +
spreading-hairy +  and glabrous +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Moist to wet meadows, stream banks, lakeshores, montane to alpine. +
stipitate-glandular +
7.5 cm75 mm <br />0.075 m <br /> (15 cm150 mm <br />0.15 m <br />) +
axillary +  and terminal +
spiral +, whorled +, alternate +  and opposite +
4.2 cm42 mm <br />0.042 m <br /> (5 cm50 mm <br />0.05 m <br />) +
green +  and purple +
deciduous +
basal +  and cauline +
lanceolate;oblong +
1.5 cm15 mm <br />0.015 m <br /> (4.2 cm42 mm <br />0.042 m <br />) +
not fleshy +
ascending +  and ascending-spreading +
3 +, 2 +  and 4 +
oblong +, linear +  and lanceolate +
subequal +
(0-)3(-5)-lobed +, involute +, flat +  and plane +
short-stipitate-glandular +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Jun–Sep. +
Leafl. W. Bot. +
20 +  and 100 +
trapezoidal +, oblong-ovoid +, pyramidal +  and ovoid +
Illustrated +  and Endemic +
non-secund +  and secund +
elongate +
subequal +
branched +  and unbranched +
sprawling +  and prostrate +
aerial +  and subterranean +
ascending +  and erect +
few;several +
not fleshy +
2-lobed +  and entire +
Castilleja carterae +
Castilleja peirsonii +
Castilleja +
species +
green +  and yellow +
shallow;deep +
reduced +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +