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Dodecatheon conjugens

Bonneville shooting star, desert shootingstar, slim-pod shooting star

scented shootingstar

Habit Plants 5–30(–40) cm; scape usually glabrous, sometimes glandular-puberulent proximally. Plants 25–80 cm; scape usually glandular-pubescent throughout, often sticky.

not obvious at anthesis;

roots whitish;

bulblets absent.

not obvious at anthesis or horizontal, short, thick;

roots tan to dark reddish brown;

bulblets absent.


3–13(–18) × 0.7–2.5(–4) cm;

petiole slender (at least proximally);

blade narrowly oblanceolate to spatulate or obovate, base usually not decurrent onto stem, usually abruptly tapering to petiole, margins entire, surfaces glabrous or glandular-puberulent.

20–50(–60) × 2.5–6 cm;

petiole usually winged;

blade oblanceolate, base decurrent onto stem, gradually tapering to petiole, margins entire, surfaces minutely glandular-pubescent.



bracts lanceolate to broadly lanceolate, 3–10 mm, glandular-puberulent.


bracts lanceolate to broadly lanceolate, 5–17 mm, glandular-pubescent.


1–5 cm, glabrous or glandular-puberulent.

2–9 cm, glandular-pubescent.


calyx light green to yellowish, sometimes finely purple-speckled or -dotted, 5–12 mm, glabrous or glandular-puberulent, tube 2–6 mm, lobes 5, 3–7 mm;

corolla tube yellowish with purplish red, thin, wavy ring, lobes 5, usually magenta, sometimes white, 7–25(–35) mm;

filaments usually distinct, yellowish or dark maroon, 0.5–1.5 mm, rarely partially connate and tube 0.5–1.5 × 1.5–5 mm;

anthers 5–9 mm;

pollen sacs usually maroon or yellow, sometimes yellowish and speckled maroon, rarely with reddish purple to purple speckles, connective usually maroon, sometimes yellowish or light blue to whitish, transversely rugose;

stigma not enlarged compared to style.

calyx light green, 10–18 mm, glandular-pubescent, tube 3–10 mm, lobes 5, 5–12 mm;

corolla tube yellow with maroon, thick, often wavy ring, ring rarely absent, lobes 5, magenta to lavender, 14–30(–35) mm;

filaments distinct, dark maroon to black, 0.2–0.8 mm (usually concealed by corolla tube);

anthers 7–11 mm, (apex acute);

pollen sacs maroon, connective dark maroon to dark purple, transversely rugose;

stigma enlarged, diam. usually 2+ times style.


tan, often striped with purple, usually operculate, rarely valvate, cylindric-ovoid, 8–17(–22) × 4–6(–8) mm, glabrous;

walls thin, pliable.

light brown, often reddish brown apically, valvate, ovoid, 8–17 × 5–9 mm, glandular-puberulent or glabrous except for glandular-puberulent teeth;

walls thin, pliable.


without membrane along edges.

with thin membrane along edges.


= 44.

Dodecatheon conjugens

Dodecatheon redolens

Phenology Flowering late spring–summer.
Habitat Moist meadows, stream banks, mainly in montane conifer woodlands
Elevation 2300-3600 m (7500-11800 ft)
from FNA
[WildflowerSearch map]
[BONAP county map]
from FNA
[WildflowerSearch map]
[BONAP county map]

Varieties 2 (2 in the flora).

Both Dodecatheon conjugens and D. poeticum occur in proximity in the Columbia River gorge. Some specimens here assigned to var. conjugens may have scattered, minute glands on the pedicels that might indicate past hybridization with D. poeticum (e.g., G. N. Jones 6286, ORE; R. R. Halse 3790, OSC, WTU). Dodecatheon poeticum is densely glandular not only on the pedicels, but also on the calyx and scape. The type of minute glandular puberulence seen on var. conjugens found along the Columbia River west of The Dalles is somewhat similar to that seen on var. viscidum in western Montana and Canada. Some plants referred here to D. conjugens have slightly connate filaments that may indicate some intergradation with D. pulchellum var. pulchellum. This suggestion is supported by the tendency in the same plants to have narrower leaves.

Some newly emerged flowers tend to have connectives that are less rugose than normal. This is particularly true of some populations in southern Alberta and, to a lesser degree, in Saskatchewan.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Dodecatheon redolens occurs mainly in the high mountains of the southern Sierra Nevada, with scattered populations in the San Bernardino, San Gabriel, and San Jacinto mountains of southern California. Elsewhere in California, it occurs on scattered desert ranges in the northern Mojave Desert. In the Intermountain West, it is found occasionally in Inyo and Mono counties on the eastern foothills of the Sierra Nevada, the White Mountains, and on or near Glass Mountain. It is found across central Nevada to the Independence and Ruby mountains of Elko County, and the Deep Creek Range of west-central Utah.

Although difficult to see, a fairly good feature of Dodecatheon redolens is that the corolla tube usually covers the filaments and proximal end of the anthers. In both D. jeffreyi and D. alpinum, the corolla tube does not cover the base of the anthers. In addition, the tips of the anthers in the latter two species are truncate to obtuse; in D. redolens they are acute.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

1. Leaf blades, scapes, and pedicels glabrous.
D. conjugens var. conjugens
1. Leaf blades, scapes proximally, and pedicels usually glandular-puberulent.
D. conjugens var. viscidum
Source FNA vol. 8, p. 271. FNA vol. 8, p. 275.
Parent taxa Primulaceae > Dodecatheon Primulaceae > Dodecatheon
Sibling taxa
D. alpinum, D. amethystinum, D. austrofrigidum, D. clevelandii, D. dentatum, D. ellisiae, D. frenchii, D. frigidum, D. hendersonii, D. jeffreyi, D. meadia, D. poeticum, D. pulchellum, D. redolens, D. subalpinum, D. utahense
D. alpinum, D. amethystinum, D. austrofrigidum, D. clevelandii, D. conjugens, D. dentatum, D. ellisiae, D. frenchii, D. frigidum, D. hendersonii, D. jeffreyi, D. meadia, D. poeticum, D. pulchellum, D. subalpinum, D. utahense
Subordinate taxa
D. conjugens var. conjugens, D. conjugens var. viscidum
Synonyms Primula conjugens D. jeffreyi var. redolens, Primula fragrans
Name authority Greene: Erythea 3: 40. (1895) (H. M. Hall) H. J. Thompson: Contr. Dudley Herb. 4: 143. 1953 ,
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