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Geranium rotundifolium

(Round-Leaf Crane's-Bill)

Overview

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Interesting Facts

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Common Names

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Common Names in English:

Round-Leaf Crane's-Bill, Roundleaf Geranium

Description

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Genus Geranium

Annual or perennial herbs. Leaves usually alternate, stipulate , variously divided . Peduncles (1-) 2-flowered. Flowers often showy, regular, usually 5-merous. Petals alternating with 5 nectiferous glands . Stamens (5-) 10, staminodes occasional. Carpels usually 5, adnate , separating septifragally from the central axis at maturity. Ovary 5-lobed. Fruit schizocarpic, of 5 mericarps which remain attached to an elastically coiling stylar axis upwards; mericarps without apical pits.

A genus of c. 400 species, mainly distributed in the temperate zone of N. Hemisphere, but also in the tropics. Represented in Pakistan by 22 species. The large flowered perennials are difficult to key out satisfactorily unless there is ample information on the nature of the underground parts, flower colour, shape and size of the leaves and the fruits. In the key that follows, I have used the following terminology: segments for primary division of leaves; lobes for secondary division . The sepal length excludes the awn . The beak length (in fruit) excludes the styles.[1]

Physical Description

Species Geranium rotundifolium

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. [source]

The general appearance of this species is much like Geranium molle or G. pusillum, and it occasionally has been misidentified with these species. However, its rounded petals and smooth mericarps permit an easy identification, which also could be supported by its subspherical and remarkably reticulate seeds. [source]

Habit: Forb/herb

Habitat

Steppes ; 900-1400 m [2].

Typically found at an altitude of 0 to 2,353 meters (0 to 7,720 feet).[3]

Biology

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Reproduction

Duration: Annual

Taxonomy

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Synonyms

Geranium caeruleum Lam. • Geranium malvaceum Burm. F. • Geranium malvifolium Scop. • Geranium potentilloides Klotzsch in Klotzsch & Garcke • Geranium propinquum Salisb. • Geranium pusillum var. malvifolium (Scop.) Nyman • Geranium rotundifolium f. albiflora (Rouy) Briq. • Geranium rotundifolium f. thurstonii Druce • Geranium rotundifolium f. umbellatum R. Berger • Geranium rotundifolium var. albiflorum (Rouy) Graebn. in Asch. & Graebn. • Geranium rotundifolium var. album Weston • Geranium rotundifolium var. angustifolium (Rouy) Graebn. in Asch. & Graebn. • Geranium rotundifolium var. arenicolum Sennen • Geranium rotundifolium var. barcinonense Sennen • Geranium rotundifolium var. caespitulosum (Lojac.) Graebn. in Asch. & Graebn. • Geranium rotundifolium var. elongatum Sennen • Geranium rotundifolium var. genuinum Graebn. in Asch. & Graebn. • Geranium rotundifolium var. glabrescens Murr • Geranium rotundifolium var. hungaricum Simonk. • Geranium rotundifolium var. malvifolium (Scop.) Mutel • Geranium rotundifolium var. minus Weston • Geranium rotundifolium var. pinnatifidum Picard • Geranium rotundifolium var. strictum Picard • Geranium rotundifolium var. subrotundum (Ehrh. Ex Hoffm.) Graebn. in Asch. & Graebn. • Geranium rotundifolium var. trichospermum (Sanio & Borbás) Graebn. in Asch. & Graebn. • Geranium semiorbiculare Rchb. • Geranium subrotundum Ehrh. Ex Hoffm. • Geranium viscidulum Fr. • Geranium viscosum Gilib.

Notes

Publishing author : Ledeb. Publication : Fl. Altaic. [Ledebour]. 3: 232 1831 [Jul-Dec? 1831]

Similar Species

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Members of the genus Geranium

ZipcodeZoo has pages for 263 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

G. (Cranesbill [thumping Heart]) · G. x cantabrigiense 'Biokovo' (Biokovo Cranesbill) · G. aequale (Awnless Geranium) · G. aequatoriale (Cranesbill) · G. albicans (Roundleaf Geranium) · G. arboreum (Hawai'i Red Cranesbill) · G. aristatum (Cranesbill) · G. asphodeloides (Hedgerow Geranium) · G. atropurpureum Heller var. cowenii (Rydb.) Dorn (Western Purple Cranesbill) · G. bicknellii (Bicknell's Cranesbill) · G. bicknellii Britton var. bicknellii Britton (Bicknell's Cranesbill) · G. bohemicum 'Orchid Blue' (Cranesbill) · G. caespitosum (James Cranebill) · G. caespitosum E.James var. fremontii (Torr. ex A.Gray) Dorn (Fremont Geranium) · G. caespitosum var. parryi (Engelm.) W.A.Weber (Parry Geranium) · G. californicum (California Crane's-Bill) · G. canariensis (Giant Geranium) · G. carolinianum (Carolina Crane's-Bill) · G. carolinianum L. var. sphaerospermum (Fern.) Breitung (Carolina Geranium) · G. cinereum (Grayleaf Geranium) · G. cinereum var. subcaulescens 'Giuseppe' (Greyleaf Geranium) · G. cinereum'Alice' (Alice Grayleaf Geranium) · G. cinereum 'Ballerina' (Ballerina Cranesbill) · G. cinereum 'Carol' (Carol Cranesbill) · G. cinereum 'Lawrence Flatman' (Grayleaf Geranium) · G. cinereum 'Memories' (Grayleaf Geranium) · G. cinereum 'Purple Pillow' (Grayleaf Geranium) · G. cinereum 'Sateene' (Sateen Grayleaf Geranium) · G. cinereum subcaulescens 'Splendens' (Grayleaf Geranium) · G. clarkei (Cranesbill) · G. clarkei 'Kashmir Pink' (Cranesbill) · G. clarkei 'Kashmir Purple' (Cranesbill) · G. clarkei 'Kashmir White' (Cranesbill) · G. columbinum (Long-Stalk Crane's-Bill) · G. cuneatum cuneatum (Cuneate-Leaf Crane's-Bill) · G. cuneatum hololeucum (Hinahina) · G. cuneatum hypoleucum (Hinahina) · G. cuneatum tridens (Hinahina) · G. dalmaticum (Geranium) · G. dissectum (Cut-Leaf Crane's-Bill) · G. divaricatum (Fanleaf Geranium) · G. Dragon Heart = 'Bremdra' (Cranesbill [dragon Heart]) · G. endressii (Cranesbill) · G. endressii x psilostemon 'Patricia' (Patricia Cranesbill) · G. erianthum (Northern Crane's-Bill) · G. farreri (Farrers Geranium) · G. gracile (Hardy Geranium) · G. hanaense (Maui Geranium) · G. harveyi (Cranesbill) · G. hayatanum (Hardy Geranium) · G. himalayense (Cranesbill) · G. himalayense 'Baby Blue' (Himalayan Geranium) · G. himalayense 'Derrick Cook' (Himalayan Geranium) · G. himalayense 'Devil's Blue' (Devil's Blue Himalayan Geranium) · G. himalayense 'Gravetye' (Himalayan Geranium) · G. himalayense 'Irish Blue' (Himalayan Geranium) · G. himalayense 'Plenum' (Birch Double Geranium) · G. homeanum (Australasia Crane's-Bill) · G. ibericum (Iberian Crane's-Bill) · G. ibericum jubatum (Iberian Geranium) · G. incanum (Carpet Geranium) · G. incanum 'Silver Sugar Plum' (Carpet Geranium) · G. kauaiense (Kauai Geranium) · G. lambertii (Geranium) · G. lambertii x procurrens 'Salome' (Salome Cranesbill) · G. lambertii 'Swansdown' (Geranium) · G. lentum (Mogollon Crane's-Bill) · G. libani (Geranium Geranium Libani) · G. lucidum (Shining Crane's-Bill) · G. macrorrhizum (Big Root Geranium) · G. macrorrhizum 'Album' (Cranesbill) · G. macrorrhizum 'Bevan's Variety' (Bevan's Variety Bigroot Cranesbill) · G. macrorrhizum 'Czakor' (Cranesbill) · G. macrorrhizum 'Ingwersen's Variety' (Ingwersen's Variety Bigroot Cranesbill) · G. macrorrhizum 'Lohfelden' (Cranesbill) · G. macrorrhizum 'Spessart' (Bigroot Cranesbill) · G. macrorrhizum 'Variegatum' (Bigroot Geranium) · G. macrorrhizum 'White-Ness' (Cranesbill) · G. macrostylum (Cranesbill) · G. maculatum (Cranesbill) · G. maculatum 'Album' (Spotted Geranium) · G. maculatum 'Elizabeth Ann' (Elizabeth Anne Hardy Geranium) · G. maculatum 'Espresso' (Espresso Cranesbill) · G. maderense (Madeiran Cranesbill) · G. magnificum (Cranesbill) · G. magniflorum (Cranesbill) · G. magniflorum 'Laveta Lace' (Geranium) · G. makmelicum (Grayleaf Geranium) · G. molle (Awnless Geranium) · G. molle molle (Dovesfoot Crane's-Bill) · G. multiflorum (Many-Flower Crane's Bill) · G. multiflorum multiflorum (Manyflower Geranium) · G. multisectum (Cranesbill) · G. nodosum (Geranium) · G. oreganum (Oregon Crane's-Bill) · G. palmatum (Canary Island Geranium) · G. palustre (Marsh Cranes-Bill) · G. phaeum (Dusky Cranesbill) · G. phaeum phaeum 'Samobor' (Cranesbill) · G. phaeum 'Album' (Dusky Cranesbill)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 17, 2007:

Identifiers

Footnotes

  1. Yasin J Nasir "Geranium". in Flora of Pakistan . Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Geranium rotundifolium". in Flora of China Vol. 11 Page 8, 14. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 144.720 meters (474.803 feet), Standard Deviation = 243.800 based on 6,500 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 2012-05-01