Castilleja chambersii

J. M. Egger & Meinke

Brittonia 51: 445, fig. 1. 1999.

Common names: Chambers’s paintbrush
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 593. Mentioned on page 575, 594, 613.

Herbs, perennial, 1.5–3.7 dm; from a thick, woody caudex; with a taproot. Stems solitary or few to several, ascending, sometimes short-decumbent and rooting, branched from near base, sometimes distally, glabrous or glabrate with hairs very sparse, ± appressed, very short, soft, eglandular. Leaves green, often brown or purple-tinged, oblong to lanceolate to narrowly ovate or ovate, (1–) 2–5.8 cm, not fleshy, margins plane, ± involute, deeply 3–7 (–11) -lobed, sometimes with secondary lobes, apex narrowly acute; lobes erect to ascending, lanceolate to linear-lanceolate to oblanceolate, apex acute. Inflorescences 3–15 × 2–4.5 cm; bracts proximally greenish, distally bright red, scarlet, or pale reddish orange, rarely orange-yellow, often fading to pale yellowish orange with age, obovate to orbicular, fan-shaped, (3–) 5–9 (–13) -lobed, sometimes with secondary lobes; lobes erect or ascending, lanceolate to triangular, short and medium length, usually arising at or above mid length, rarely below, apex acute. Calyces proximally green, sometimes purple to brown, distally colored as bracts, 20–30 mm; abaxial and adaxial clefts 7–14 mm, ca. 33% of calyx length, deeper than laterals, lateral 2–4 mm, 10–15% of calyx length; lobes triangular, barely longer than wide, apex acute or acuminate to obtuse. Corollas straight, 30–45 mm; tube 14–19 mm; beak long-exserted, adaxially green or yellow-green to brownish, 18–24 mm; abaxial lip deep green, reduced, 1–3 mm, 10% as long as beak; teeth incurved, greenish to dull purplish, 0.5–1.5 mm. 2n = 24.


Phenology: Flowering Jun–Aug.
Habitat: Turf or crevices on rocky slopes and benches over basalt, se to sw aspect, sun or partial shade.
Elevation: 600–1000 m.

Discussion

Castilleja chambersii is limited to the summits of three volcanic peaks in the northern Coast Range of Clatsop County, Oregon, and at one similar area in nearby Pacific County, Washington. It is similar to C. rupicola, and the two likely share a common ancestor. Disturbance and erosion from logging and road construction represent significant threats to C. chambersii. Populations of C. chambersii often grow near and even alongside C. hispida, but hybrids are rare.

Selected References

None.

Lower Taxa

None.

"acute" is not a number."medium" is not a number.

... more about "Castilleja chambersii"
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Acuminate (?) +  and Obtuse (?) +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
J. M. Egger & Meinke +
long-exserted +
1.8 cm18 mm <br />0.018 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
not +, leathery +  and fleshy +
orange;fading;pale yellowish +
(3-)5-9(-13)-lobed +, fan--shaped +, obovate +  and orbicular +
lateral +  and deeper +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
colored +, purple +  and brown +
2-lobed +, lobed +  and tubular +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
Chambers’s paintbrush +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Oreg. +  and Wash. +
600–1000 m. +
spreading-hairy +  and glabrous +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Turf or crevices on rocky slopes and benches over basalt, se to sw aspect, sun or partial shade. +
much-branched +, unbranched +  and eglandular +
stipitate-glandular +
axillary +  and terminal +
spiral +, whorled +, alternate +  and opposite +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
purple-tinged +, brown +  and green +
deciduous +
basal +  and cauline +
oblong;lanceolate +
2 cm20 mm <br />0.02 m <br /> (5.8 cm58 mm <br />0.058 m <br />) +
not fleshy +
barely longer than wide +
above mid lobes +, arising +, ascending +  and erect +
3 +, 2 +  and 4 +
triangular +  and lanceolate +
subequal +
3-7(-11)-lobed +  and plane +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Jun–Aug. +
20 +  and 100 +
trapezoidal +, oblong-ovoid +, pyramidal +  and ovoid +
Endemic +  and Conservation concern +
non-secund +  and secund +
elongate +
subequal +
eglandular +, branched +  and rooting +
aerial +  and subterranean +
not fleshy +
2-lobed +  and entire +
Euchroma +  and Oncorhynchus +
Castilleja chambersii +
Castilleja +
species +
greenish +  and dull purplish +
shallow;deep +
reduced +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +