泰山韭 tai shan jiu

Bulb solitary or clustered, subcylindric, ca. 0.5 cm in diam., attached to an oblique, stout rhizome; tunic grayish black, membranous, entire. Leaves broadly linear, shorter than to subequaling scape, 7--10 mm wide, attenuate at both ends, abaxially 1-angled, scabrous-denticulate along angle and margin. Scape 22--27 cm, 2-angled, scabrous-denticulate along angles, covered with leaf sheaths only at base. Spathe 2-valved, persistent. Umbel nearly hemispheric, many flowered. Pedicels subequal, 2--3 × as long as perianth, ebracteolate. Perianth pale red to white; segments ovate-oblong; outer ones 3.2--3.8 × 1.7--1.9 mm; inner ones 3.7--4.6 × 2.2--2.5 mm. Filaments equal, slightly longer than perianth segments, connate at base and adnate to perianth segments for ca. 0.6 mm; outer ones ca. 1/2 as wide at base as inner; inner ones with a broadened, triangular base. Ovary obovoid-globose, with concave nectaries covered by hoodlike projections at base. Style exserted. Fl. Sep.

* Slopes; 300--600 m. C Shandong (Tai Shan).