Thalictrum clavatum Dc.

Mountain meadow-rue (en)

Species

Angiosperms > Ranunculales > Ranunculaceae > Thalictrum

Characteristics

Roots few, blackish, filiform or somewhat tuberous. Stems erect, not scapose, 15-50(-60) cm, glabrous. Leaves basal and cauline; proximal cauline leaves petiolate, 2-3×-ternately compound; distal cauline leaves sessile or short-petiolate, 2×-ternately compound or simple. Leaf blade: leaflets reniform to obovate, apically 4-7-lobed, 10-30 mm wide, lobe margins crenate, surfaces abaxially glaucous. Inflorescences panicles or nearly corymbs, few flowered. Flowers: pedicels very slender, elongate; sepals white, obovate-spatulate, 2.5-4 mm; filaments white, 2.5-4 mm; anthers 0.3-0.5 mm. Achenes 3-8, spreading; stipe 1-3(-4) mm, usually ± 1/2 as long (sometimes nearly as long) as achene body; body flat, falcate, 3-5 mm, abaxially convex, adaxially concave, conspicuously 3-veined on each face; beak minute.
More
Stem 3–7 dm, from a cluster of thickened roots, often little exceeding the basal lf; lfls 2–3 cm long and wide, pale beneath; panicle widely branched, few-fld, with elongate, slender pedicels; fls perfect; filaments white, generally more than 3 mm, strongly dilated above; anthers minute; achenes falcate, concave on the upper margin, strongly convex on the lower, 4–5.5 mm, conspicuously 3-nerved on each face; stipe 1.5–3 mm. Moist woods and cliffs in and near the mts.; Va. and W.Va. to e. Ky., s. to S.C. and Ga. May–July.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-6
Soil humidity 5-7
Soil texture 1-2
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
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°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Thalictrum clavatum world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:714316-1
WFO ID wfo-0001129459
COL ID 7C5KD
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Sumnera clavata Thalictrum filipes Thalictrum clavatum Thalictrum nudicaule Physocarpum clavatum