Comments
provided by eFloras
The indumentum of this species is variable, with patent trichomes in some specimens and retrorse and appressed in others. As in Geranium dahuricum and G. soboliferum, trichomes of petals are ± dense on the base of the inside and extending upward on veins. Geranium yesoense Franchet & Savatier is a related species endemic to Japan, Sakhalin, and Kurile Islands, with nectaries glabrous, longer petals, similar leaf blade divisions, and rootstock with thickened and not fasciculate roots.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
provided by eFloras
Perennials. Rootstock ± vertical, 5-12 mm in diam., not tuberculate, with a fascicle of long thickened roots. Stem (25-)50-129 cm tall, erect, not rooting at nodes, with 0.4-0.8 mm retrorse appressed or patent nonglandular trichomes. Stipules lanceolate, distinct or connate at least at base. Leaves opposite; petiole with 0.3-0.8 mm retrorse appressed or patent nonglandular trichomes; leaf blade 5.6-11.9 cm, palmately cleft, ratio of main sinus/middle segment length = (0.81-)0.83-0.87, pilose with appressed nonglandular trichomes; segments 5 or 7, rhombic, 4.3-8.8 mm wide at base, 5-14-lobed in distal half, ratio of second sinus/middle segment length = 0.18-0.32. Cymules solitary, 2-flowered; peduncle 1.2-8.8 cm. Pedicel 2.3-5.5 cm, with 0.1-0.7 mm retrorse appressed or patent nonglandular trichomes; bracteoles lanceolate. Sepals (6.2-)7-10 mm, mucro 0.6-1.3 mm, ratio of mucro/sepal length = 0.1-0.15, outside with 0.3-0.7 mm antrorse ± appressed nonglandular trichomes, inside glabrous. Petals light pink, (1-)1.1-1.4(-1.5) cm, erect to patent, outside basally with trichomes, inside basal 1/3-1/2 with trichomes, margin basally ciliate, apex rounded. Staminal filaments pinkish, lanceolate, base slightly dilated, abaxially pilose and proximal half ciliate, trichomes 0.2-0.7 mm; anthers brown, 1.6-2.1 mm. Nectaries 5, hemispheric, abaxially glabrous, apex with a tuft of trichomes. Stigma brown. Fruit 2.6-3.1 cm, erect when immature; mericarps smooth, with a basal callus, with 0.1-0.4 mm ± patent nonglandular trichomes and apically usually with 0.4-0.7 mm patent glandular trichomes; rostrum 1.6-2 cm, with a 1.6-2.6 mm narrowed apex; stigmatic remains 4.6-6.6 mm. Seeds 1.6-2.2 mm. Fl. Jul-Aug, fr. Aug-Sep. 2n = 28.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
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Heilongjiang, Jilin, Liaoning [Japan, Korea, Russia (Far East)].
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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Scrub, meadows, weedy areas in farmlands; 600-1200 m.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Geranium sieboldii Maximowicz.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA