Geranium pratense L.

Meadow crane's-bill (en), Géranium des prés (fr)

Species

Angiosperms > Geraniales > Geraniaceae > Geranium

Characteristics

Perennials. Rootstock ± horizontal, 0.7-2 cm in diam., not tuberculate, with thickened roots along rootstock. Stem 23-100(-150) cm tall, erect, not rooting at nodes, with 0.1-1.7 mm retrorse to patent nonglandular trichomes and sometimes 0.2-1.2 mm patent glandular trichomes. Stipules lanceolate, distinct. Leaves opposite; petiole with 0.3-0.9 mm retrorse to patent nonglandular trichomes and sometimes 0.5-1.1 mm patent glandular trichomes; leaf blade (4.2-)6.2-11.5 cm, palmately cleft, ratio of main sinus/middle segment length = (0.81-)0.86-0.94, pilose with appressed nonglandular trichomes; segments (5 or)7(or 9), rhombic, 2.2-7.5 mm wide at base, 10-30-lobed in distal half, ratio of second sinus/middle segment length = 0.15-0.48. Cymules solitary, 2-flowered; peduncle 1.3-12 cm. Pedicel 0.3-2.5 cm, with 0.2-0.4 mm patent to retrorse nonglandular trichomes and 0.4-1.2 mm patent glandular trichomes; bracteoles lanceolate. Sepals (0.7-)1-1.2 cm, mucro (1.7-)2.2-3.9 mm, ratio of mucro/sepal length = 0.16-0.39, outside with 0.2-0.9 mm patent nonglandular trichomes and 0.3-1 mm patent glandular trichomes, inside glabrous. Petals bluish or sometimes purplish or white, (1.3-)1.5-1.9(-2.4) cm, erect to patent, both surfaces glabrous, margin basally ciliate, apex rounded. Staminal filaments pinkish, lanceolate with a broadly triangular base and an abruptly narrowed apex, both sides glabrous but proximal third with 0.2-0.6 mm cilia; anthers dark violet to bluish black, 1.8-3.1 mm. Nectaries 5, hemispheric, abaxially glabrous, apex with a tuft of trichomes. Stigma green to pinkish. Fruit 3-3.7 cm, reflexed when immature; mericarps smooth but usually with 1 or 2 transversal veins at apex, with a basal callus, with 0.3-0.7 mm ± appressed nonglandular trichomes and usually only apically with 0.2-0.9 mm patent glandular trichomes; rostrum 2.1-2.9 cm, with a 7-9 mm narrowed apex; stigmatic remains 2-3 mm. Seeds 3-3.6 mm. Fl. Jun-Jul, fr. Jul-Aug. 2n = 28.
More
Hairy, perennial, rhizomatous herb, with thick rhizome or caulorrhiza and ± erect flowering stems to c. 50 cm long. Petioles of basal lvs long, usually red at base and apex; hairs directed downward. Lamina deeply palmately lobed, ± reniform, to c. 10 × 12 cm, densely hairy when young; lobes 5-7, pinnatifid to pinnatisect; ultimate segments ± acute. Cauline lvs much smaller than basal. Infl. very open, with a few pairs of fls; peduncles long; peduncles and pedicels densely covered in glandular hairs. Sepals 11-13 mm long including a short awn, densely covered in glandular hairs; margins hyaline; nerves reddish. Corolla saucer-shaped. Petals 18-24 × 12-17 mm, obovate, blue or deep blue with somewhat pinkish veins; claw very short; apex rounded. Filaments white, strongly dilated towards base; anthers blue. Ovary with glandular hairs. Ripe mericarps not seen.
Much like no. 1 [Geranium maculatum L.], the lvs generally more deeply cleft, with narrower and more sharply laciniate segments; pedicels, cal, and beak of the fr densely glandular-tomentose; peduncles usually 1-fld; pedicels deflexed after anthesis, becoming erect again at maturity; pet 15–20 mm, bright blue-violet, entire or slightly retuse; 2n=28. Native of Eurasia, occasionally escaped or adventive with us, especially northeastward. June, July.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread epizoochory
Mature width (meter) 0.3 - 0.75
Mature height (meter) 0.5 - 1.0
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) 0.3
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Meadows and roadsides.
Light 4-9
Soil humidity 3-7
Soil texture 2-5
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 5-8

Usage

Uses environmental use medicinal
Edible -
Therapeutic use Anti-bacterial agents (leaf), Cancer (unspecified), Hypotension (unspecified), Wound healing (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Habit

Geranium pratense habit picture by Bela Borbely (cc-by-sa)
Geranium pratense habit picture by Sabina Hartmann (cc-by-sa)
Geranium pratense habit picture by Gabriel Ollivier (cc-by-sa)

Leaf

Geranium pratense leaf picture by laurent hoffmann (cc-by-sa)
Geranium pratense leaf picture by zaunkönig (cc-by-sa)
Geranium pratense leaf picture by Dieter Cuypers (cc-by-sa)

Flower

Geranium pratense flower picture by Dieter Cuypers (cc-by-sa)
Geranium pratense flower picture by Ludovic Kasperski (cc-by-sa)
Geranium pratense flower picture by Christian Brandenburg (cc-by-sa)

Fruit

Geranium pratense fruit picture by Andrey (cc-by-sa)
Geranium pratense fruit picture by Gabriel Ollivier (cc-by-sa)
Geranium pratense fruit picture by Ahmed Ghedjatti (cc-by-sa)

Distribution

Geranium pratense world distribution map, present in Canada, China, France, United Kingdom of Great Britain and Northern Ireland, Nepal, New Zealand, Pakistan, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:322493-2
WFO ID wfo-0000701108
COL ID 3FV2S
BDTFX ID 75151
INPN ID 100128
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Geranium pratense f. pratense Geranium acknerianum Geranium alpinum Geranium batrachioides Geranium coelestinum Geranium mariae Geranium napellifolium Geranium pratense Geranium valde-pilosum Geranium caeruleum Geranium neapolitanum Geranium pratense var. litwinowii Geranium pratense var. schmidii Geranium pratense subsp. sergievskajae Geranium pratense subsp. stewartianum Geranium pratense var. pubescens Geranium pratense var. parviflorum Geranium pratense var. pallidum Geranium pratense var. tenuisectum Geranium pratense var. albidum Geranium kemulariae Geranium pratense f. leucanthemum Geranium pratense f. albiflora Geranium pratense var. pratense Geranium pratense var. affine