Dodecatheon frenchii

(Vasey) Rydberg

Fl. Plains N. Amer., 626. 1932 ,.

Common names: French’s shootingstar
Basionym: Dodecatheon meadia var. frenchii Vasey in A. Gray et al., Manual ed. 6 issue 2, 735b. 1891
Synonyms: Dodecatheon meadia subsp. membranaceum R. Knuth Primula frenchii
Treatment appears in FNA Volume 8. Treatment on page 285. Mentioned on page 271, 286.

Plants 20–40(–60) cm; scape glabrous, rarely glandular-pubescent. Caudices not obvious at anthesis; roots white; bulblets absent. Leaves 10–30 × 4–8(–10) cm; petiole slender (at least basally); blade (not suffused with red at base), spatulate to ovate or broadly oval, base slightly decurrent onto stem, abruptly tapering to petiole, margins usually entire, surfaces usually glabrous, rarely minutely glandular. Inflorescences 2–15-flowered; bracts lanceolate, 3–10 mm, glabrous, rarely glandular-pubescent. Pedicels 1–5 cm, usually glabrous, rarely glandular-pubescent. Flowers: calyx light green, 3–8 mm, glabrous, tube 2–2.5 mm, lobes 5, 3–6 mm; corolla tube maroon and yellow with maroon, thin, wavy ring, lobes 5, white, sometimes pale rose or lavender to (rarely) magenta, 10–20 mm; filaments distinct and 0.8–1.2 mm or connate and tube yellow, 0.8–1.2 × 1.2–1.8 mm; anthers 5–7.5 mm; pollen sacs yellow, rarely speckled with red or maroon, connective purple, dark maroon, or black, smooth; stigma not enlarged compared to style. Capsules reddish brown, valvate, cylindric-ovoid, 6–10 × 3.5–5 mm, glabrous; walls thick, firm. Seeds without membrane along edges. 2n = 44.


Phenology: Flowering spring.
Habitat: Moist, shaded flats under sandstone cliffs and overhanging ledges along or near streams
Elevation: 100-300 m

Distribution

V8 577-distribution-map.gif

Ala., Ark., Ill., Ind., Ky., Mo.

Discussion

Dodecatheon frenchii is relatively rare throughout its restricted range in southern Illinois (Jackson, Johnson, Pope, Saline, Union, and Williamson counties), southern Indiana (Crawford and Perry counties), and western Kentucky (Breckinridge, Carter, Crittenden, Edmonson, Hardin, Menifee, Todd, Union, and Warren counties), with additional outlying populations in Colbert County, Alabama, Cleburne and Newton counties, Arkansas, and at Hickory Canyons Natural Area in Sainte Genevieve County, Missouri. The mature leaves nearly always have a distinctive cordate base.

Selected References

None.

Lower Taxa

None.
... more about "Dodecatheon frenchii"
James L. Reveal +
(Vasey) Rydberg +
Dodecatheon meadia var. frenchii +
French’s shootingstar +
Ala. +, Ark. +, Ill. +, Ind. +, Ky. +  and Mo. +
100-300 m +
Moist, shaded flats under sandstone cliffs and overhanging ledges along or near streams +
Flowering spring. +
Fl. Plains N. Amer., +
Dodecatheon meadia subsp. membranaceum +  and Primula frenchii +
Dodecatheon frenchii +
Dodecatheon +
species +