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FOC | Family List | FOC Vol. 11 | Geraniaceae | Geranium

39. Geranium wallichianum D. Don ex Sweet, Geraniaceae. 1: t. 90. 1821.

宽托叶老鹳草 kuan tuo ye lao guan cao

Perennials. Rootstock ± vertical, 5.8-8.8 mm in diam., not tuberculate, with many fibrous roots. Stem 24-50 cm tall, trailing or ascending, not rooting at nodes, with 0.3-1.7 mm patent to retrorse nonglandular trichomes and sometimes scattered 1.4-2 mm patent glandular trichomes. Stipules broadly ovate, connate. Leaves opposite; petiole with 0.4-1.5 mm patent to retrorse nonglandular trichomes and sometimes scattered 1.5-2 mm patent glandular trichomes; leaf blade 3.8-7.2 cm, palmately cleft, ratio of main sinus/middle segment length = 0.75-0.86, pilose with appressed nonglandular trichomes; segments 3 or 5, rhombic, 0.8-1.4 cm wide at base, 9-17-lobed in distal half, ratio of second sinus/middle segment length = 0.14-0.23. Cymules solitary, 2-flowered; peduncle 3.3-15.3 cm. Pedicel 3.1-8.4 cm, with 0.2-1.5 mm patent to retrorse nonglandular trichomes and sometimes scattered 1.5-2.1 mm patent glandular trichomes; bracteoles broadly lanceolate. Sepals 6.4-10.1 mm, mucro 2.3-4.6 mm, ratio of mucro/sepal length = 0.24-0.58, outside with 0.3-1.2 mm antrorse ± appressed nonglandular trichomes, inside glabrous. Petals deep pink, purplish, or blue, (1.2-)1.4-2.2 cm, erect to patent, inside basally with trichomes, margin basally ciliate, apex emarginate with a 0.4-1.4 mm notch. Staminal filaments blackish at least at tip, lanceolate, base slightly dilated, abaxially pilose and proximal half ciliate, trichomes 0.3-0.6 mm; anthers black, 2.2-3 mm. Nectaries 5, hemispheric, abaxially glabrous, apex with a tuft of trichomes. Stigma blackish. Fruit 3-3.9 cm, erect when immature; mericarps smooth, with a basal callus, with 0.6-1.6 mm ± patent nonglandular trichomes; rostrum 2-2.6 cm, with a 2.9-4.6 mm narrowed apex; stigmatic remains 5-7.6 mm. Seeds 3.6-3.9 mm. Fl. Jun-Jul, fr. Aug-Sep. 2n = 26, 28.

Broad-leaved forests; 2500-3400 m. S Xizang [Afghanistan, N India, Kashmir, Nepal, Pakistan].

Geranium wallichianum shares with G. koreanum distinctive broadly ovate stipules. They have very separate areas of distribution, and some other important differentiating morphological features mentioned in the key. Additionally, G. wallichianum has blackish filaments, anthers, and stigma, and broad bracteoles, not found in G. koreanum.


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