长筒石蒜 chang tong shi suan

Bulbs ovoid, ca. 4 cm in diam. Leaves appearing in early spring, lanceolate, gradually tapering toward apex, ca. 40 × 1.5--2.5 cm, midvein pale, apex rounded. Flowering stem 60--80 cm. Umbel 5--7-flowered; involucres 2, lanceolate, ca. 5 cm, apex acuminate. Perianth white or yellow, ca. 5 cm in diam.; tube 4--6 cm; lobes adaxially with pale red stripes (if perianth white), narrowly elliptic, 6--8 × ca. 1.5 cm, margin not undulate, apex slightly recurved. Stamens slightly shorter than perianth. Style longer than perianth. Fl. Jul--Aug. 2 n = 16*.

* Mountain slopes, shady and moist areas on slopes; low elevations. Jiangsu.