Aconitum columbianum subsp. viviparum

(Greene) Brink

Sida 16: 13. 1994.

EndemicIllustrated
Basionym: Aconitum viviparum Greene Feddes Repert. Spec. Nov. Regni Veg. 7: 2. 1909 Aconitum bulbiferum Howell 1897
Synonyms: Aconitum columbianum var. howellii (A. Nelson & J. F. Macbride) C. L. Hitchcock Aconitum hansenii
Treatment appears in FNA Volume 3.

Bulbils conspicuous in leaf-axils and sometimes in inflorescence in place of flowers. 2n=18, 19, 20.


Phenology: Flowering summer (Jul–Sep).
Habitat: Spring-fed bogs, seep areas, meadows, along streams, and other moist areas in mountains
Elevation: 900-2500 m

Discussion

One group of populations occurs in the Sierra Nevada, south of Lake Tahoe, in California. Another group of bulbiferous populations begins ca. 350 miles north in the Klamath Mountains of California and extends to northern Oregon in the Cascade Range. These bulbiferous populations form a geographically and morphologically distinct group. We have not noted intergradation between bulbiferous and nonbulbiferous subspecies of A. columbianum.

Bulbils are an effective means of vegetative reproduction. They fall to the ground late in the season and sprout vigorously, giving rise to new plants. Bulbil production should not be confused with the production of one to several small daughter tubers at the first few nodes above the parent tuber, usually below ground, which can occur on a small percentage of the plants in bulbiferous and nonbulbiferous populations. In other respects, these bulbiferous populations are similar to adjoining races of Aconitum columbianum subsp. columbianum.

Selected References

None.

Lower Taxa

None.

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

20 +, 19 +  and 18 +
D. E. Brink +  and J. A. Woods +
(Greene) Brink +
cuneate +, truncate +  and cordate +
expanded +
Aconitum viviparum +  and Aconitum bulbiferum +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
3-5(-7)-divided +
5cm;15cm +
conspicuous +
globose;cylindric +
nearly +  and sessile +
Calif. +  and Oreg. +
900-2500 m +
sessile +  and pedicellate +
blue tinged +, cream colored +, white +  and blue +
showy +  and inconspicuous +
sessile +  and aggregate +
Spring-fed bogs, seep areas, meadows, along streams, and other moist areas in mountains +
1.1 cm11 mm <br />0.011 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
crescent--shaped +, hemispheric +  and conic-hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0 cm0 mm <br />0 m <br /> (28 cm280 mm <br />0.28 m <br />) +
membranous +
round-reniform +
compound +  and simple +
whorled +, opposite +  and alternate +
cauline +  and basal +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
palmate +  and pinnate +
toothed;incised +
capitate +  and coiled +
distinct +
reduced +
Flowering summer (Jul–Sep). +
elongate +
not arillate +  and stalked +
deltoid +
3 (?) +  and 7 (?) +
not persistent +
distinct +
3 +  and 6 +
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Endemic +  and Illustrated +
reclining +  and erect +
persistent +
Aconitum columbianum var. howellii +  and Aconitum hansenii +
Aconitum columbianum subsp. viviparum +
Aconitum columbianum +
subspecies +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cylindric +, hemispheric +  and rounded-conic +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
herbaceous +  and woody +