Thalictrum sparsiflorum

Turczaninow ex Fischer & C. A. Meyer

Index Sem. Hort. Petrop. 1: 40. 1835.

Common names: Mountain meadow-rue few-flowered meadow-rue
Illustrated
Synonyms: Thalictrum sparsiflorum subsp. richardsonii (A. Gray) Cody Thalictrum sparsiflorum var. nevadense B. Boivin Thalictrum sparsiflorum var. richardsonii (A. Gray) B. Boivin Thalictrum sparsiflorum var. saximontanum B. Boivin
Treatment appears in FNA Volume 3.

Stems erect, leafy, slender, (20-) 30-100 (-120) cm, glabrous. Leaves mostly cauline, proximal leaves petiolate, distalmost sessile. Leaf-blade (2-) 3-ternate; leaflets obovate to orbiculate or cordate, usually 3-cleft and divisions 3-lobed, thin, 10-20 mm, surfaces abaxially often glandular-puberulent. Inflorescences axillary, 1-few flowers, diffuse, leafy; bracts leaflike, large. Flowers: pedicels abruptly recurved in fruit; sepals whitish or greenish, often purplish tinged, elliptic, 2-3.5 (-4) mm; stamens 12-20, whitish; filaments 3-4.5 mm; anthers 0.5-0.8 mm. Achenes (4-) 6-12; stipe 0.3-1.5 mm; body obliquely obovate to half-rhombic, strongly compressed, (4-) 5-6 × 3-4 mm, abaxial margin straight, glabrous or glandular-puberulent, faintly 3-4 (-5) -veined; beak 1-1.5 mm.


Phenology: Flowering late spring–summer (Jun–Aug).
Habitat: Meadows, damp thickets, bogs, and coniferous, deciduous, and riparian woods
Elevation: 0-3000 m

Distribution

V3 277-distribution-map.gif

Alta., B.C., Man., N.W.T., Ont., Sask., Yukon, Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wyo., ne Asia

Discussion

The Cheyenne the flowers and ground plants of Thalictrum sparsiflorum medicinally to make their horses "spirited, long-winded, and enduring" (D. E. Moerman 1986).

Selected References

None.

Lower Taxa

None.

... more about "Thalictrum sparsiflorum"
glandular-puberulent +  and glabrous +
short-stipitate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Marilyn M. Park +  and Dennis Festerling Jr. +
Turczaninow ex Fischer & C. A. Meyer +
cuneate +, truncate +  and cordate +
straight +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
compressed;obliquely obovate;half-rhombic +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
globose;cylindric +
Mountain meadow-rue +  and few-flowered meadow-rue +
Alta. +, B.C. +, Man. +, N.W.T. +, Ont. +, Sask. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wyo. +  and ne Asia +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0-3000 m +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
showy +  and inconspicuous +
unisexual +
0 cm0 mm <br />0 m <br /> (41 cm410 mm <br />0.41 m <br />) +
stipitate +, sessile +  and aggregate +
falcate;ovoid;obovoid +
Meadows, damp thickets, bogs, and coniferous, deciduous, and riparian woods +
compound +  and simple +
whorled +, opposite +  and alternate +
obovate +  and orbiculate or cordate +
palmate +  and pinnate +
crenate;entire +
(1-)2-200-flowered +
distinct +
conspicuous +
reduced +
Flowering late spring–summer (Jun–Aug). +
1 +  and 16 +
Index Sem. Hort. Petrop. +
not arillate +  and stalked +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
purplish tinged;greenish;whitish +
not persistent +
distinct +
lanceolate +  and reniform or spatulate +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
ribbed +  and veined +
Illustrated +
slender +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +
glandular-puberulent +
Thalictrum sparsiflorum subsp. richardsonii +, Thalictrum sparsiflorum var. nevadense +, Thalictrum sparsiflorum var. richardsonii +  and Thalictrum sparsiflorum var. saximontanum +
Thalictrum sparsiflorum +
Thalictrum sect. Omalophysa +
species +
herbaceous +  and woody +