Dodecatheon pulchellum var. distolum

Reveal

Phytologia 88: 294. 2006 ,.

Common names: Syncline shootingstar
Synonyms: Primula pauciflora var. distola (Reveal) Mast & Reveal
Treatment appears in FNA Volume 8. Treatment on page 284. Mentioned on page 281.

Plants sparsely glandular-puberulent or minutely glandular. Leaves 2–10 (–13) × (0.3–) 0.5–2 cm; blade oblanceolate to elliptic. Pedicels usually glandular, rarely sparsely glandular-puberulent. Flowers: calyx glabrous and often minutely glandular at least on margins or sparsely glandular-puberulent; corolla lobes usually magenta to lavender, rarely white, 8–15 (–18) mm, tube yellow with reddish, thin, wavy ring; filament tube yellow, 1–2 (–2.5) mm; anthers 3.5–6 mm; pollen-sacs yellow, connective maroon.


Phenology: Flowering late spring–early summer.
Habitat: Flats and slopes often on limestone mainly in grassland and sagebrush communities, oak and/or conifer woodlands
Elevation: 1200-2000(-2800) m

Discussion

Variety distolum is found primarily on both sides of the Powder River Basin syncline in the Big Horn Mountains to the west and the Black Hills of northeastern Wyoming and adjacent west-central South Dakota in the east. Isolated populations occur at Devils Tower in Crook County, Wyoming.

Selected References

None.

Lower Taxa

None.

"reddish" is not a number. "maroon" is not a number. "purple" is not a number.

0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
acute;mostly acute;rounded +
James L. Reveal +
Reveal +
whitish +  and yellowish +
tapering +  and decurrent +
Exinia pulchella +
crenulate +  and denticulate +
oblanceolate;elliptic +
puberulent +, glandular-pubescent +  and glabrous +
lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
purple-flecked;green +
glandular-puberulent +  and glabrous +
not keeled +  and tubular +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
, +, speckled with red or speckled with maroon +, reddish-brown +, tan +  and light-brown +
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
glandular-pubescent +  and glabrous +
cylindric-ovoid +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not obvious +
minute +
Syncline shootingstar +
wrinkled +  and smooth +
yellow with reddish +  and magenta +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
short-tubular +
S.Dak. +  and Wyo. +
1200-2000(-2800) m +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
operculate +  and capsular +
Flats and slopes often on limestone mainly in grassland and sagebrush communities, oak and/or conifer woodlands +
nectariferous +
2-15(-22)-flowered +
10 cm100 mm <br />0.1 m <br /> (13 cm130 mm <br />0.13 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
maroon speckles +, reddish +  and pink +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
white +, usually magenta +  and lavender +
usually longer +
reflexed +  and spreading +
undulate +  and toothed +
membranous +
tenuinucellate +  and bitegmic +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
glandular-puberulent +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
white;pink or violet or magenta +
wingless +  and winged +
Flowering late spring–early summer. +
puberulent +, glandular-pubescent +  and glabrous +
dark-brown +  and black +
alveolate +
globose +  and ovoid or quadrate +
toothlike +
Illustrated +
connate +  and distinct +
nearly +  and erect +
inflated +
not enlarged +
glandular-pubescent +  and glabrous +
Primula pauciflora var. distola +
Dodecatheon pulchellum var. distolum +
Dodecatheon pulchellum +
variety +
yellow with reddish +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
perennial +  and annual +
stoloniferous +  and rhizomatous +
45 cm450 mm <br />0.45 m <br /> (60 cm600 mm <br />0.6 m <br />) +
glandular +  and glandular-puberulent +