Castilleja pallida var. yukonis

(Pennell) J. M. Egger

Phytologia 90: 76. 2008.

Common names: Yukon paintbrush
IllustratedEndemic
Basionyms: Castilleja yukonis Pennell Proc. Acad. Nat. Sci. Philadelphia 86: 531. 1934
Synonyms: C. muelleri Pennell
Treatment appears in FNA Volume 17. Treatment on page 639. Mentioned on page 637, 640.

Herbs perennial. Stems: hairs spreading, ± matted, long, eglandular, mixed with retrorse, short ones, rarely short-stipitate-glandular ones. Leaves linear to linear-lanceolate, 1.5–10.5 cm, apex acuminate; lobe apex acute. Inflorescences 3–7 cm; bracts yellowish throughout, sometimes orangish or reddish, sometimes green with margins yellow or cream, lanceolate to oblong. Calyces proximally pale green, distally light yellow, (13–) 16–18.5 mm; abaxial and adaxial clefts 6–9 mm, 45–55% of calyx length, lateral 0.3–2 (–4) mm, 2–20% of calyx length; lobes triangular to ovoid. Corollas straight, 12–22 (–28) mm; tube 10–20 mm; beak margins light yellow; abaxial lip greenish yellow, orangebrown, or red, 4–6 mm. 2n = 48.


Phenology: Flowering Jun–Aug.
Habitat: Dry grasslands, bluffs, eskers, pingos, alluvial plains, shores, open slopes, gravelly roadsides.
Elevation: 600–1100 m.

Discussion

Variety yukonis is primarily limited to central and southern Yukon, though it also likely occurs at least sporadically in the adjacent portions of eastern Alaska. Reports of this variety from Asia are doubtful. Its status in the Mackenzie River delta region in the Northwest Territories is still unclear, and plants from that region may be referable to variably colored populations of Castilleja raupii. See additional notes for this form under 81. C. pallida.

Selected References

None.

Lower Taxa

None.

"arising" is not a number.

0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
red +, orangebrown +  and greenish yellow +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1.21 cm12.1 mm <br />0.0121 m <br />) +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
(Pennell) J. M. Egger +
Castilleja yukonis +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not +, leathery +  and fleshy +
green;reddish;orangish;yellowish +
lanceolate +  and oblong +
1.3 cm13 mm <br />0.013 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
light yellow +  and pale green +
2-lobed +, lobed +  and tubular +
1.6 cm16 mm <br />0.016 m <br /> (1.85 cm18.5 mm <br />0.0185 m <br />) +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Yukon paintbrush +
2.2 cm22 mm <br />0.022 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
1.2 cm12 mm <br />0.012 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
N.W.T. +, Yukon +  and Alaska. +
600–1100 m. +
spreading-hairy +  and glabrous +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Dry grasslands, bluffs, eskers, pingos, alluvial plains, shores, open slopes, gravelly roadsides. +
yellowish +  and whitish +
short-stipitate-glandular +
short to long +
axillary +  and terminal +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
spiral +, whorled +, alternate +  and opposite +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
green +  and redbrown or deep purple +
deciduous +
basal +  and cauline +
linear;linear-lanceolate +
1.5 cm15 mm <br />0.015 m <br /> (10.5 cm105 mm <br />0.105 m <br />) +
not fleshy +
above mid length +, ascending +  and erect +
3 +, 2 +  and 4 +
triangular +  and ovoid +
expanded +
cream +  and yellow +
3-5-lobed +, 0-lobed +, flat +  and involute +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Jun–Aug. +
0-5(-7)-lobed +, broadly lanceolate +  and ovate or lanceolate +
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 +
not fleshy +
2-lobed +  and entire +
C. muelleri +
Castilleja pallida var. yukonis +
Castilleja pallida +
variety +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
yellow +, cream +  and white +
shallow;deep +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
reddish-purplish +