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FOC | Family List | FOC Vol. 6 | Caryophyllaceae | Arenaria

76. Arenaria ionandra Diels, Notes Roy. Bot. Gard. Edinburgh. 5: 182. 1912.

紫蕊无心菜 zi rui wu xin cai

Herbs small. Roots branched, conic. Stems branched at base, yellow or violet, 4--10 cm, densely glandular hairy in 2 lines or glabrous. Petiole short; leaf blade saccate or ovate, 3--7 × 1--3 mm, thick, both surfaces glabrous, base attenuate, apex obtuse. Flower solitary, terminal; bracts similar to leaves but smaller. Pedicel 1--2.5 mm, glandular villous. Sepals 5, dark violet at base abaxially, orbicular-lanceolate or orbicular, 3--5 × 1.5--2.5 mm, glabrous or black glandular hairy, base broadened, margin broadly membranous, apex obtuse. Petals 5, white or partly violet, broadly ovate or obovate-elliptic, ca. 2 × as long as sepals, base shortly clawed, apex 2-cleft. Stamens 10; filaments ca. 4 mm; anthers violet or dark violet. Ovary subglobose, ca. 1.5 mm in diam. Styles 2, ca. 1.5 mm. Fl. Jul--Aug.

* Mountains, alpine shifting screes; 3600--5300 m. SW Sichuan, NW Yunnan.

1 Sepals glabrous; petals white   76a var. ionandra
+ Sepals black glandular hairy; petals partly violet   76b var. melanotricha


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