Flora of China
  FOC Vol.6 (2001)              | Family List  Caryophyllaceae  PDF Arenaria  PDF   | Link Font:+ Big | - Small
   102. Arenaria yunnanensis  Franchet
云南无心菜   yun nan wu xin cai


Herbs. Roots spinose, nodose. Stems diffuse, many branched, slender, 15--30 cm, glabrous at base, violet nodose glandular hairy in 1 line distally. Proximal cauline leaves shortly petiolate; distal cauline leaves sessile; leaf blade linear-lanceolate to orbicular, 1--3 cm × 5--6 mm, adaxially coarse, granular, hairy along veins, base attenuate, margin ciliate, apex obtuse, mucronate. Cymes conic, many flowered; bracts similar to leaves but smaller. Pedicel slender, glandular hairy. Sepals 5, lanceolate, 3--6 mm, glandular pubescent abaxially, apex acuminate. Petals 5, white, obovate or orbicular, 6--10 mm, apex fimbriate. Stamens 10; anthers yellow-green. Ovary ovoid; ovules numerous. Styles 2. Capsule slightly shorter than persistent sepals, apex 4-valved. Seeds 3 or 4, reniform. Fl. and fr. Jul--Sep.

* Alpine forest margins, subalpine meadows, mountain grasslands; 2900--3800 m. SW Sichuan, NW Yunnan.

Two varieties have been recognized. The distinguishing charac-ters seem to be only a matter of degree, and the variation pattern should be studied in the field. Perhaps this variation should not be the basis for formal recognition of taxa.

1Leaves lanceolate to orbicular102a  var. yunnanensis    云南无心菜(原变种)
+Leaves linear-lanceolate102b  var. caespitosa    簇生无心菜