Thalictrum pubescens Pursh

King of the meadow (en), Pigamon mineur (fr), Petit pigamon (fr)

Species

Angiosperms > Ranunculales > Ranunculaceae > Thalictrum

Characteristics

Stems erect, coarse, 50-300 cm. Leaves basal and cauline; basal and proximal cauline leaves petiolate, distal cauline sessile; petioles and rachises frequently pubescent. Leaf blade ternately and pinnately decompound; leaflets light to dark green, cordate or nearly orbiculate to ovate or obovate, apically undivided to 2-3(-5)-lobed or-toothed, 11-68 × 5-70 mm, length 0.8-2.6 times width, membranous to firm, margins scarcely revolute, lobe margins entire, surfaces abaxially pubescent to glabrous. Inflorescences racemes or panicles to corymbs, apically ± rounded, many flowered; peduncles and pedicels often pubescent. Flowers unisexual or bisexual (sometimes bisexual with very few stamens); sepals 4(-6), white to purplish, elliptic-rounded, 2-3.5 mm; filaments ascending, white to purplish, filiform to distinctly clavate, 1.5-7 mm, usually rigid; anthers 0.5-1.5(-2.1) mm, usually blunt or only slightly apiculate. Achenes numerous, sessile to stipitate; stipe 0.5-1.5(-2.4) mm; body ellipsoid, 3-5 mm, prominently veined, usually pubescent; beak usually persistent, straight or coiled distally, 0.6-2.5 mm, about 1/2 length of achene body. 2 n = 126.
More
Stems mostly 1–3 m, arising from a short crown; cauline lvs sessile; lfls glabrous to more often minutely puberulent beneath, mostly 3-lobed and more than 15 mm; infl ± rounded above; sep 2–3.5 mm, ± elliptic and rounded; filaments white, dilated distally, often wider than the anther, constricted at the tip; anthers usually narrowly obovoid, blunt, 0.8–1.5 mm; stigmas 0.5–2 mm, fiddlehead-curved; achenes somewhat glandular, drying dark, 3–5 mm, a third to half as wide, narrowed below to a short stipe 0.3–0.5 mm; lowest achenes much reflexed, the head of achenes therefore subglobose; 2n=84, 154. Rich woods, wet meadows, and streambanks; Lab. and Que. to Ont.,s. to s. N.C., Tenn., and Ind. June–Aug., often later than other spp. (T. polygamum)
A herb.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 3.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant.
Light 4-6
Soil humidity 5-7
Soil texture 1-2
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-7

Usage

The leaves are used to flavour salmon.
Uses medicinal spice
Edible leaves
Therapeutic use Liver Aid (root), Hemostat (unspecified), Cyanogenetic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 15 - 21
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Thalictrum pubescens habit picture by Matthias Foellmer (cc-by-sa)

Leaf

Thalictrum pubescens leaf picture by George Annette (cc-by-sa)
Thalictrum pubescens leaf picture by Thierry Thierry Bessière (cc-by-sa)
Thalictrum pubescens leaf picture by ellenelle ellenelle (cc-by-sa)

Flower

Thalictrum pubescens flower picture by George Annette (cc-by-sa)
Thalictrum pubescens flower picture by ellenelle ellenelle (cc-by-sa)
Thalictrum pubescens flower picture by Thomas Lemelin (cc-by-sa)

Fruit

Thalictrum pubescens fruit picture by Catalin Gruia (cc-by-sa)

Distribution

Thalictrum pubescens world distribution map, present in Canada, France, Saint Pierre and Miquelon, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:714782-1
WFO ID wfo-0001129471
COL ID 562FT
BDTFX ID 67695
INPN ID 126198
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Thalictrum viride Thalictrum polygamum Thalictrum pubescens var. pubescens Thalictrum pubescens var. hebecarpum Thalictrum polygamum var. hebecarpum Thalictrum polygamum var. intermedium Thalictrum canadense var. hebecarpum Thalictrum carolinianum var. subpubescens Thalictrum polygamum var. pubescens Thalictrum pubescens