Thalictrum fendleri

Engelmann ex A. Gray

Mem. Amer. Acad. Arts, ser. 2, 4: 5. 1849.

Common names: Fendler's meadow-rue
Illustrated
Synonyms: Thalictrum fendleri var. platycarpum Trelease Thalictrum fendleri var. wrightii (A. Gray) Trelease
Treatment appears in FNA Volume 3.

Roots dark-brown to ± black (when dry), fibrous. Stems mostly erect, sometimes reclining, (20-) 30-60 (-150) cm, glabrous, from rhizomes or branched caudices. Leaves mainly cauline, mostly short-petiolate. Leaf-blade green, (2-) 3-4×-ternately compound, membranous; leaflets obliquely orbiculate or nearly cordate, apically 3-lobed, (5-) 10-20 × (6-) 8-12 (-18) mm wide, lobe margins crenate, surfaces abaxially often glandular. Inflorescences terminal and axillary, panicles, open and leafy, many flowered. Flowers: sepals whitish or greenish, in staminate flowers ovate to elliptic, 3-5 mm; in pistillate flowers ovate to rhombic or broadly lanceolate, 1.5-2 mm; filaments deep yellow or purplish, 4-7.5 mm; anthers 2.2-3.4 mm, apiculate with tip to 0.8 mm; stigma purplish. Achenes 7-11 (-14), not reflexed, sessile to short-stipitate; stipe 0-2 mm; body oblanceolate to obliquely obovate-elliptic, strongly laterally compressed, (5-) 9 (-11) mm, glandular or glabrous, 3-4 (-5) -veined on each side, veins ± parallel, converging toward ends (rarely branched or sinuous), not anastomosing-reticulate; beak 1.5-4 mm.


Phenology: Flowering early-mid summer (Jun–Aug).
Habitat: Willow, birch, mountain brush, sagebrush-snowberry, boxelder-cottonwood, alder, ponderosa pine, lodgepole pine, aspen-tall forb, and spruce-fir communities
Elevation: 1100-3300 m

Distribution

V3 936-distribution-map.gif

Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Tex., Utah, Wyo., n Mexico

Discussion

The stems and achenes of Thalictrum fendleri are often purplish.

Decoctions prepared from the roots of Thalictrum fendleri were used medicinally by Native Americans to cure colds and gonorrhea, and in ceremonies (D. E. Moerman 1986).

Selected References

None.

Lower Taxa

None.
... more about "Thalictrum fendleri"
sessile +  and short-stipitate +
not reflexed +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
Marilyn M. Park +  and Dennis Festerling Jr. +
Engelmann ex A. Gray +
cuneate +, truncate +  and cordate +
Heterogamia +
straight +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
3-4(-5)-veined +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
glabrous +  and glandular +
compressed;oblanceolate;obliquely obovate-elliptic +
9 cm90 mm <br />0.09 m <br /> (?) +
globose;cylindric +
Fendler's meadow-rue +
Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Tex. +, Utah +, Wyo. +  and n Mexico +
1100-3300 m +
purplish +, yellow +  and deep +
0.4 cm4 mm <br />0.004 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
pistillate +  and staminate +
showy +  and inconspicuous +
unisexual +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
stipitate +, sessile +  and aggregate +
falcate;ovoid;obovoid +
Willow, birch, mountain brush, sagebrush-snowberry, boxelder-cottonwood, alder, ponderosa pine, lodgepole pine, aspen-tall forb, and spruce-fir communities +
short-petiolate +
whorled +, opposite +  and alternate +
3-lobed +, cordate +  and orbiculate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
palmate +  and pinnate +
crenate;entire +
flowered +, leafy +  and open +
distinct +
conspicuous +
reduced +
Flowering early-mid summer (Jun–Aug). +
1 +  and 16 +
Mem. Amer. Acad. Arts, ser. +
dark-brown;more or less black +
not arillate +  and stalked +
greenish;whitish +
not persistent +
distinct +
lanceolate +  and reniform or spatulate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
ribbed +  and veined +
Illustrated +
reclining +  and erect +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
Thalictrum fendleri var. platycarpum +  and Thalictrum fendleri var. wrightii +
Thalictrum fendleri +
Thalictrum sect. Heterogamia +
species +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
not anastomosing-reticulate +
converging +  and parallel +
herbaceous +  and woody +