Geranium thunbergii Siebold ex Lindl. & Paxton

Thunberg's geranium (en)

Species

Angiosperms > Geraniales > Geraniaceae > Geranium

Characteristics

Perennials. Rootstock vertical, 2-10 mm in diam., not tuberculate, without thickened roots. Stem 20-70 cm tall, trailing or ascending, sometimes rooting at nodes, with 0.3-1.4 mm patent or retrorse appressed nonglandular trichomes and sometimes 0.8-1.3 mm patent glandular trichomes. Stipules lanceolate to subulate, distinct. Leaves opposite; petiole with 0.3-1.2 mm patent to retrorse nonglandular trichomes and sometimes 0.5-1.2 mm patent glandular trichomes; leaf blade 2.4-6.4 cm, palmately cleft, ratio of main sinus/middle segment length = 0.73-0.91, pilose with appressed nonglandular trichomes; segments 5, rhombic, 4-12 mm wide at base, 5-8-lobed in distal half, ratio of second sinus/middle segment length = 0.11-0.21. Cymules solitary, 2-flowered; peduncle 2.2-13.9 cm. Pedicel 0.8-3.3 cm, with 0.2-1 mm patent nonglandular trichomes and usually 0.6-1.1 mm patent glandular trichomes; bracteoles linear-lanceolate. Sepals 5.1-8.1 mm, mucro 0.8-1.9 mm, ratio of mucro/sepal length = 0.12-0.25, outside with 0.1-0.9 mm patent to antrorse nonglandular trichomes and 0.2-1.2 mm patent glandular trichomes, inside glabrous. Petals white or purplish, (6.8-)7.3-8.3(-9) mm, erect to patent, outside glabrous, inside basally with trichomes, margin basally ciliate, apex rounded or retuse. Staminal filaments whitish, lanceolate with an abruptly narrowed apex, abaxially pilose and proximal half ciliate, trichomes 0.1-0.7 mm; anthers bluish, 0.8-1.1 mm. Nectaries 5, hemispheric, glabrous. Stigma pink. Fruit 1.9-2.7 cm, erect when immature; mericarps smooth, with a basal callus, with 0.2-0.7 mm ± patent nonglandular trichomes and 0.6-1.5 mm glandular trichomes; rostrum 1.3-2 cm, with a 0.5-1.8 mm narrowed apex; stigmatic remains 1.6-2.3 mm. Seeds 1.7-2.2 mm. Fl. Apr-Sep, fr. May-Oct. 2n = 28.
More
A herb. It keeps growing from year to year. The stems are 20-70 cm tall. They can be trailing and form roots at the nodes. The leaves are 2-6 cm long and divided like fingers.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.3
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a temperate. In China it grows from sea level to 2,000 m above sea level.
More
Grassy places in lowland areas all over Japan.
Light 7-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-9

Usage

The young leaves are eaten with oil and salt. The older leaves are dried and used as tea substitute.
Uses medicinal oil tea
Edible leaves
Therapeutic use Diarrhea (unspecified), Intestine (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Geranium thunbergii unspecified picture

Distribution

Geranium thunbergii world distribution map, present in Brazil, Canada, China, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:322497-2
WFO ID wfo-0000701460
COL ID 3FV9H
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Geranium thunbergii Geranium nepalense var. thunbergii Geranium peregrinum