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Geranium erianthum

(Northern Crane's-Bill)

Overview

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Interesting Facts

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Common Names

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Common Names in English:

Northern Crane's-Bill, Wild Alaskan, Woolly 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 erianthum

Perennials . Rootstock ± horizontal, 5-10 mm in diam., not tuberculate , with thickened roots along rootstock. Stem 10-50 cm tall, erect , not rooting at nodes, with 0.2-0.6 mm retrorse appressed nonglandular trichomes . Stipules lanceolate, distinct . Leaves 1(or 2) alternate but opposite at inflorescence; petiole with 0.2-0.5 mm retrorse appressed nonglandular trichomes; leaf blade 3-11.7 cm, palmately cleft , ratio of main sinus/middle segment length = (0.8-) 0.82-0.91, pilose with appressed nonglandular trichomes; segments 7, rhombic , 4.4-8.7(-16.9) mm wide at base , 10-34-lobed in distal half, ratio of second sinus/middle segment length = 0.18-0.35. Cymules solitary or in aggregates at apex of each branch , 2-flowered; peduncle (0-) 1.1-5.5 cm. Pedicel 0.3-1.8 cm, with 0.2-0.6 mm patent to retrorse nonglandular trichomes and usually 0.3-2.5 mm patent glandular trichomes; bracteoles linear-lanceolate. Sepals 0.6-1 cm, mucro 0.9-2.7 mm, ratio of mucro/sepal length = 0.14-0.32, outside with 0.2-0.8 mm antrorse appressed nonglandular trichomes and 0.3-2 mm patent glandular trichomes, inside glabrous . Petals purplish, 1.2-1.8(-2) cm, erect to patent, outside basally with trichomes, inside glabrous, margin basally ciliate , apex rounded . Staminal filaments purplish, lanceolate, abaxially pilose and proximal half ciliate, trichomes 1.5-3.2 mm; anthers bluish, 2.1-3 mm. Nectaries 5, hemispheric , glabrous. Stigma purplish. Fruit 2.7-3.7 cm, erect when immature ; mericarps smooth , with a basal callus, with 0.1-1.1 mm ± patent nonglandular trichomes and 0.8-1.4 mm patent glandular trichomes; rostrum 2.2-3 cm, with a 5-7.4 mm narrowed apex; stigmatic remains 1.6-2.3 mm. Seeds 2-2.9 mm. Fl. Jul-Aug, fr. Aug-Sep. 2n = 28. [source]

Leaves of Geranium erianthum permit a quick identification from G. platyanthum because they are more deeply divided . The main and the second sinus are deeper, and the middle segment is narrower at the base. Additionally, the sepal mucro is longer in G. erianthum, and trichomes of the stem and of the staminal filament are shorter. Usually G. erianthum has glandular trichomes restricted to the inflorescence. [source]

Habit: Forb/herb

Flowers: Bloom Period: April, May. • Flower Color: blue-violet, light blue, medium blue

Size/Age/Growth

Size: 24-36" tall.

Habitat

Forests , scrub , meadows.[2].

Biology

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Reproduction

Duration: Perennial

Growth

Culture: Space 18-24" apart.

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b. (map)

Taxonomy

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Synonyms

G. gorbizense Aedo & Mu&ntilde • G. orientale (Maximowicz) Freyn (1902) • Geranium elatum (Maxim.) R. Knuth in Engl. • Geranium erianthum f. albiflora Kom. • Geranium erianthum f. alpestris Kom. • Geranium erianthum f. communis Kom. • Geranium erianthum f. leucanthum Takeda • Geranium erianthum f. pallescens Nakai • Geranium erianthum var. angustifolium Miyabe & Tatew. • Geranium erianthum var. elatum Maxim. • Geranium erianthum var. orientale Maxim. • Geranium eriostemon Fischer Ex Candolle Var. orientale Maximowicz • Geranium eriostemon var. orientale Maxim. • Geranium gorbizense Aedo & Muñoz Garm. • Geranium maculatum L. Ap. Ledeb. • Geranium orientale (Maxim.) Freyn • Geranium pratense L. var. erianthum (DC.) B.Boivin • Geranium pratense var. erianthum (Dc.) B. Boivin • Geranium subumbelliforme R. Knuth in Engl.

Notes

Publishing author : DC. Publication : Prodr. (DC.) 1: 641 1824 [mid Jan 1824]

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. 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) · G. phaeum 'Calligrapher' (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 14, 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 erianthum". in Flora of China Vol. 11 Page 8, 20, 21. Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 7/15/2012