石缝蝇子草 shi feng ying zi cao

?Silene foliosa var. mongolica Maximowicz; ?S. maximowicziana Kozhevnikov (1995), not Rohrbach (1869–1870); S. tatarica Persoon var. foliosa (Maximowicz) Regel.

Herbs perennial, 25--40 cm tall. Roots robust, lignified, multicrowned. Stems clustered, erect, slender, basally retrorsely hairy. Basal leaves withered at anthesis; cauline leaves with prominent, sterile axillary branches, linear-oblanceolate or lanceolate-linear, 2--4 cm × 3--6 mm, shortly villous at midvein, margin shortly ciliate, base attenuate, apex acuminate. Flowers in a thyrse; cymules 1- to several flowered. Pedicel 4--6 mm, slender, viscid; bracts lanceolate-linear, basal margin membranous, ciliate. Calyx ovoid-campanulate, 6--8 mm. Androgynophore 2--2.5 mm, sparsely hairy. Petal claws oblanceolate, glabrous; limbs white, deeply bifid to middle or more; lobes linear, apex obtuse; coronal scales minute. Stamens and styles conspicuously exserted; filaments glabrous. Styles 3. Capsule globose-ovoid, 5--7 × 2.5--3 mm. Seeds grayish brown, reniform, ca. 1 mm. Fl. Jul--Aug, fr. Aug.

Forests, mountain grasslands, gravelly stone fissures; 1300--2000 m. Gansu, Heilongjiang, S Nei Mongol, Ningxia, Shanxi, N Shaanxi [Japan, Korea, Russia].

The concept of Silene foliosa and S. macrostyla, sensu Maximowicz, is difficult to understand, and it is possible that the variation between these two taxa is more or less continuous. More detailed studies, including typifications, are needed.