Geranium rotundifolium L.
  • Sp. Pl.


Cite taxon page as 'WFO (2020): Geranium rotundifolium L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000701258. Accessed on: 29 May 2020'

General Information

Annuals. Stem 10-40 cm tall, erect, not rooting at nodes, with 0.2-1.2 mm patent nonglandular trichomes and 0.2-0.6 mm patent glandular trichomes. Stipules lanceolate, distinct. Leaves opposite; petiole with 0.2-1 mm patent nonglandular trichomes and 0.2-0.6 mm patent glandular trichomes; leaf blade 1.2-3.3 cm, palmately cleft, ratio of main sinus/middle segment length = 0.55-0.65, pilose with appressed nonglandular and sometimes glandular trichomes; segments 5, obtriangular, 5-10 mm wide at base, (3-)6-8-lobed at apex, ratio of second sinus/middle segment length = 0.13-0.2. Cymules solitary, 2-flowered; peduncle 1.8-3 cm. Pedicel 0.7-2 cm, with 0.3-1 mm patent nonglandular trichomes and 0.3-0.6 mm patent glandular trichomes; bracteoles linear-lanceolate. Sepals 4.5-6 mm, mucro 0.3-0.6 mm, ratio of mucro/sepal length = 0.06-0.1, outside with 0.4-1 mm patent nonglandular trichomes and 0.4-0.9 mm patent glandular trichomes, inside glabrous. Petals purplish, 6-7 mm, erect to patent, both surfaces glabrous or sometimes inside with scattered trichomes, apex rounded. Staminal filaments whitish, lanceolate, basally slightly dilated, glabrous except proximal half with some 0.1-0.2 mm cilia; anthers yellowish, ca. 0.5 mm. Nectaries 5, hemispheric, glabrous. Stigma reddish. Fruit 1.6-1.8 cm, erect when immature; mericarps smooth, with a basal callus, with 0.2-0.3 mm ± patent nonglandular trichomes; rostrum 1.2-1.3 cm, with a 2-3 mm narrowed apex; stigmatic remains 1-1.2 mm. Seeds 1.8-2 mm. Fl. May-Jun, fr. Jun-Jul. 2n = 26.

  • Provided by: [B].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    "A native of Eurasia, with more rotund lvs cleft only to about the middle, the segments shallowly lobed about the rounded or truncate summit, and with smaller fls, the sep at anthesis 4–5.5 mm, blunt or shortly subulate-tipped, the fr 15–20 mm, is rarely adventive in our range. It might sometimes key to G. molle, but has the mature carpel-bodies hirsute and not wrinkled."

  • Provided by: [D].New York Botanical Garden
    • Source: [
    • 2
    • ]. 

    Diagnostic Description

    Its entire petals and smooth hairy carpels will distinguish it from G. molle, which has rather similar foliage.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Morphology

    Annual herb, stems up to ±50cm, erect or ascending, pilose with spreading glandular and eglandular hairs. Stipules ovate, acuminate. Radical leaves tufted, petioles up to ±250 mm long, pilose as the stem; blade up to ±65 mm in diam., divided less than halfway to the centre into 5.7 lobes, lobes cuneate in outline, deeply crenate, both surfaces thinly pilose; cauline leaves similar, but petioles progressively shorter and blade reduced. Peduncles opposite the upper leaves and shorter than they, eventually forming compound cymes, usually 2-flowered, pilose with spreading hairs mostly gland-tipped. Pedicels similar to peduncles. Sepals ±4.5 x 1.5 mm, pilose. Petals ±7.5 x 2.5 mm, oblong, tips rounded or slightly notched, pink. Rostrum pilose with spreading glandular and eglandular hairs. Carpels smooth, pilose.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Distribution

    A native of Europe naturalized on the Cape Peninsula since early in the last century, but possibly not common.

  • Provided by: [A].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

      Bibliography

     Information From

    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • A All Rights Reserved
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    Geraniaceae
    World Flora Online Data. 2017.
    • C CC0 1.0 Universal (CC0 1.0).
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • D Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).