Castilleja puberula

Rydberg

Bull. Torrey Bot. Club 31: 644. 1905.

Common names: Alpine or short-flowered paintbrush
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 648. Mentioned on page 576.

Herbs, perennial, 0.8–1.5 dm; from a woody caudex; with a taproot. Stems few to several, erect or ascending, unbranched, sometimes branched, hairs retrorse, short, soft, eglandular. Leaves green to purple, linear to linear-lanceolate, 2–3.3 cm, not fleshy, margins plane, involute, 0–3 (–5) -lobed, apex acuminate; lobes ascending-spreading to widely spreading, narrowly linear, apex acute. Inflorescences 4–5 × 1.5–2.5 cm; bracts greenish throughout, or proximally greenish, distally bright-yellow, yellow-green, or yellow-orange on apices, narrowly lanceolate to linear-lanceolate, 0–5 (–7) -lobed; lobes spreading, filiform to linear, long, proximal lobes arising in proximal 1/2, apex acute to acuminate. Calyces light green to yellowish, margins sometimes yellow, 10–17 mm; abaxial clefts 8–9 mm, adaxial 2–3 mm, abaxial ca. 50% of calyx length, adaxial ca. 20% of calyx length, deeper than laterals, lateral 1.9–2.5 mm, 12–20% of calyx length; lobes narrowly triangular, apex acute to acuminate. Corollas straight or slightly curved, 18–21 mm; tube 13–15 mm; beak exserted, adaxially yellow to yellow-green, 6–8 mm; abaxial lip green, reduced, visible in front cleft, slightly pouched, 2.5–3.5 mm, 35–60% as long as beak; teeth erect, yellow, 1 mm. 2n = 24.


Phenology: Flowering (Feb–)Jul–Aug.
Habitat: Moist meadows, stream banks, mesic rocky slopes, tundra, subalpine and alpine.
Elevation: 2700–3900 m.

Discussion

Castilleja puberula is a near-endemic of alpine communities in the Rocky Mountains of Colorado in Boulder, Clear Creek, Gilpin, Grand, Larimer, and Park counties. A highly disjunct population occurs near the summit of Mt. Jefferson on the Continental Divide in Beaverhead County, Montana. Castilleja puberula appears to be a high-elevation isolate from the widespread C. flava, which is common at lower elevations in the Intermountain Region. A single case of hybridization with C. septentrionalis is known from Clear Creek County.

Selected References

None.

Lower Taxa

None.

... more about "Castilleja puberula"
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Acute (?) +  and Acuminate (?) +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
Rydberg +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not +, leathery +  and fleshy +
yellow-orange;yellow-green;yellow-orange;yellow-green;bright-yellow;greenish;greenish +
0-5(-7)-lobed +, narrowly lanceolate +  and linear-lanceolate +
light green +  and yellowish +
2-lobed +, lobed +  and tubular +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
Alpine or short-flowered paintbrush +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
curved +  and straight +
1.8 cm18 mm <br />0.018 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
Colo. +  and Mont. +
2700–3900 m. +
spreading-hairy +  and glabrous +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Moist meadows, stream banks, mesic rocky slopes, tundra, subalpine and alpine. +
stipitate-glandular +
axillary +  and terminal +
spiral +, whorled +, alternate +  and opposite +
green +  and purple +
deciduous +
basal +  and cauline +
linear;linear-lanceolate +
2 cm20 mm <br />0.02 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
not fleshy +
spreading +, ascending-spreading +  and widely spreading +
3 +, 2 +  and 4 +
triangular +, filiform +  and linear +
subequal +
0-3(-5)-lobed +  and plane +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering (Feb–)Jul–Aug. +
Bull. Torrey Bot. Club +
20 +  and 100 +
trapezoidal +, oblong-ovoid +, pyramidal +  and ovoid +
Endemic +  and Conservation concern +
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 +
Euchroma +  and Oncorhynchus +
Castilleja puberula +
Castilleja +
species +
shallow;deep +
reduced +
1 cm10 mm <br />0.01 m <br /> (?) +
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +