Dodecatheon pulchellum var. pulchellum

Common names: Pretty shootingstar
Illustrated
Synonyms: Dodecatheon pauciflorum Greene Dodecatheon pauciflorum var. watsonii (Tidestrom) B. Boivin Dodecatheon pulchellum subsp. pauciflorum (Greene) Hultén Dodecatheon pulchellum subsp. watsonii (Tidestrom) H. J. Thompson Dodecatheon pulchellum var. watsonii Dodecatheon radicatum Dodecatheon radicatum subsp. watsonii (Tidestrom) H. J. Thompson Primula pauciflora
Treatment appears in FNA Volume 8. Treatment on page 281. Mentioned on page 272, 278, 282, 284.

Plants usually glabrous. Leaves (3–) 4–17 (–25) × 0.5–2.5 (–4.5) cm; blade oblanceolate to spatulate. Pedicels usually glabrous, rarely glandular. Flowers: calyx usually glabrous, rarely glandular; corolla-tube yellow with maroon, thin, wavy ring, lobes magenta to lavender, (5–) 7–15 (–18) mm; filament tube usually yellow, rarely magenta, 1.8–3.6 mm; anthers 3.5–5 mm; pollen-sacs usually maroon, rarely yellow, connective maroon. 2n = 44.


Phenology: Flowering spring–summer.
Habitat: Moist, sometimes saline or even alkaline flats and slopes usually in meadows, grassy places, or under conifers, sometimes in boggy or marshy places with birch, willow, or aspen
Elevation: 400-3500 (-4100) m

Distribution

V8 568-distribution-map.gif

Alta., B.C., Man., N.W.T., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Mont., Nebr., Nev., N.Mex., N.Dak., Oreg., Utah, Wash., Wyo., Mexico (Chihuahua), Mexico (Durango)

Discussion

Variety pulchellum is the most widespread and common variant of the species. It ranges from south-eastern Alaska and western Canada, to southeastern Manitoba, to Lassen County, California, northern and eastern Arizona, New Mexico, and northern Mexico. Scattered populations are found in western North Dakota (Burke County) and in western Nebraska (Morrill County). A collection at Fort Lewis, Thurston County, Washington (D. Thysell 705, WTU), may be an introduction.

Relatively small, usually high-elevation plants in southeastern British Columbia, Idaho, western Montana, northeastern Nevada, and western Wyoming have been segregated as var. watsonii. The origin of a similar specimen, supposedly from Mount Arrowsmith on Vancouver Island (collector unknown, UBC) remains to be confirmed. In Montana and northwestern Wyoming, such plants can be easily confused with the sparsely glandular Dodecatheon conjugens, which also has transverse rugose (not smooth or longitudinally wrinkled) connectives.

Plants with leaves to 25 cm wide may be seen along the Front Range of the Rocky Mountains in Colorado and in north-central New Mexico; this phase was named Dodecatheon radicatum. Some populations from Alberta (the type location of D. pulchellum) have similar leaves. Plants with yellow pollen sacs occur in some populations on the Great Plains in Alberta, Manitoba, and Saskatchewan, gradually becoming more common eastward. A collection from the Sierra Madre, Durango, Mexico (E. W. Nelson 4780, K, US) is allied to var. pulchellum. Some populations east of the Alaska Range and in adjacent northern Yukon, here assigned to var. pulchellum, have minutely glandular calyces, pedicels, nodes, and uppermost portion of scapes. The taxonomic significance of these plants has not been determined; they may indicate some past introgression with D. frigidum.

Selected References

None.

Lower Taxa

None.

"+timestube" is not declared as a valid unit of measurement for this property.

0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
James L. Reveal +
(Rafinesque) Merrill +
whitish +  and yellowish +
tapering +  and decurrent +
Exinia pulchella +
crenulate +  and denticulate +
oblanceolate;spatulate +
puberulent +, glandular-pubescent +  and glabrous +
lanceolate +
purple-flecked;green +
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 +
Pretty shootingstar +
wrinkled +  and smooth +
yellow with maroon +
Alta. +, B.C. +, Man. +, N.W.T. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Oreg. +, Utah +, Wash. +, Wyo. +, Mexico (Chihuahua) +  and Mexico (Durango) +
400-3500 (-4100) m +
magenta +  and yellow +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
operculate +  and capsular +
Moist, sometimes saline or even alkaline flats and slopes usually in meadows, grassy places, or under conifers, sometimes in boggy or marshy places with birch, willow, or aspen +
nectariferous +
2-15(-22)-flowered +
17 cm170 mm <br />0.17 m <br /> (25 cm250 mm <br />0.25 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
4cm;17cm +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 2.5 cm25 mm <br />0.025 m <br /> (?) +
maroon speckles +, reddish +  and pink +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
magenta +  and lavender +
usually longer +
reflexed +  and spreading +
undulate +  and toothed +
tenuinucellate +  and bitegmic +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
wingless +  and winged +
Flowering spring–summer. +
yellow +  and maroon +
J. Arnold Arbor. +
reddish +, maroon +  and purple +
puberulent +, glandular-pubescent +  and glabrous +
alveolate +
globose +  and ovoid or quadrate +
Illustrated +
connate +  and distinct +
nearly +  and erect +
inflated +
not enlarged +
glandular-pubescent +  and glabrous +
Dodecatheon pauciflorum +, Dodecatheon pauciflorum var. watsonii +, Dodecatheon pulchellum subsp. pauciflorum +, Dodecatheon pulchellum subsp. watsonii +, Dodecatheon pulchellum var. watsonii +, Dodecatheon radicatum +, Dodecatheon radicatum subsp. watsonii +  and Primula pauciflora +
Dodecatheon pulchellum var. pulchellum +
Dodecatheon pulchellum +
variety +
maroon +  and dark purple or black +
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 />) +
1mm;3mm +
perennial +  and annual +
stoloniferous +  and rhizomatous +