• Scientific Name: Trillium camschatcense Ker Gawl.
• Ref: Bot. Mag. 22: t. 855. 1805
• Synonyms: Trillium erectum var. japonicum A.Gray, T. kamtschaticum Pall. ex Pursh, T. kamtschatikum Ledeb., T. pallasii Hultén
• English Common Name: Kamchatka trillium
• Chinese Common Name: 吉林延龄草 Jílín yánlíngcǎo
• Japanese Common Name: オオバナノエンレイソウ [大花の延齢草] ōbananoenreisō
• Family: Melanthiaceae
• Genus: Trillium
• Distribution: Forests, forest margins, moist places; 500–1400 m. Jilin [Japan, Korea, Russia (Siberia); North America].
• Photo: Mt. Changbai, Jilin

Plants 35--50 cm tall. Rhizome stout, abbreviated. Stems tufted. Leaves sessile, broadly rhombic-orbicular or ovate-orbicular, 10--17 × 7--17 cm. Peduncle 1.5--4 cm. Flowers 3--5 cm wide. Outer tepals green, broadly lanceolate to oblong-lanceolate, 3--3.5 × 0.7--1.2 cm; inner ones white, elliptic or obovate, 3--3.8 × 1--1.6 cm. Stamens ca. 2/5 as long as tepals; filaments 3--4 mm; anthers usually 7--10 mm, with slightly convex connective apically. Ovary subconical-ovoid; stigma rather thick. Berry ovoid-globose, 1.8--2.8 cm in diam. Fl. Jun, fr. Aug. 2 n = 10*, 24. (Flora of China)