Silene marmorensis a terminal cyme of flowers at the top of the stem, and some flowers may occur in the leaf axils. Each flower has a hairy, veined calyx of fused sepals. The flowers bloom at night, the five pinkish or green-tinged petals opening at the tip of the calyx. This species is threatened by logging operations and other degradation of its habitat. Silene marmorensis Silene marmorensis is a rare species of flowering plant in the pink family known by the common names Marble Mountain catchfly, Marble Mountain campion, and Somes Bar campion. It is endemic to the southern Klamath Mountains of
Lithophragma heterophyllum and usually divided into about three pointed lobes. Lithophragma heterophyllum Lithophragma heterophyllum is a species of flowering plant in the saxifrage family known by the common name hillside woodland star. It is native to the coastal mountain ranges of California, where it can generally be found in shady habitat. It is a rhizomatous perennial herb growing erect or leaning with a slender naked flowering stem. The leaves are located on the lower part of the stem, each divided into rounded lobes. The stem bears 3 to 12 flowers, each in a cuplike calyx of red or green sepals. The five