Leucoptera nodosa (Thunb.) B.Nord.

An erect slender glabrous shrublet up to ca 0.5 m high, moderately branching mainly in the upper parts; stems and branches becoming nude and knotty with old leaf-bases. Leaves alternate, closely set, suberect-erecto-patent, filiform, some entire and some 3-forked above the middle or pinnatipartite with 2 pairs of segments, 1-4 cm long, ca 0.5 mm wide, herbaceous or subcoriaceous, subterete-slightly flattened, minutely mucronate. Leaf-base somewhat decurrent, swollen, firm, yellowish, up to 1 mm wide, persistent. Peduncle erect, 5-20 cm long, 0.5-1.2 mm thick, faintly striate. Involucre 1-1.5 cm wide; outermost involucral bracts ovate or broadly ovate, many-veined, with narrow membranous margins; inner bracts oblong-obovate with membranous margins and tips, up to 1 cm long and 0.5(-0.7) cm wide, with obtuse-rounded tips; innermost bracts smaller. Receptacle convex, nude. Ray-florets 8-13, white. Tube ca 2.5-3 mm long, somewhat compressed, glandular especially in the upper half. Lamina elliptic-oblong, 9-12 mm long, 3-4.5 mm wide, (4-)7-veined, apically shallowly 3-toothed. Style branches flattened, oblong, with a central resin excretion. Disc-florets numerous. Corolla 3-4 mm long. Tube subcylindrical, 1.2-2 mm long, densely glandular-hirsute in the upper half. Limb campanulate, 1.8-2 mm long; lobes triangular-ovate, 0.7-0.8 mm long, with a distinct resin gland near the apex. Anthers 1.5-1.7 mm long incl. the broadly oblong-ovate obtuse appendage. Style branches 0.6-0.8 mm long, flattened, truncate. Achenes oblong-obovate, 2.5-4 mm long and 2-3 mm broad, creamy white; lateral wings 0.2-0.5 mm broad. Median pappus scale 1-2 mm long, 1-1.5 mm wide, glossy white with light brownish tinge; sublateral scales ca 0.5 mm long with often premorse apex. Disc-florets numerous. Corolla 3-4 mm long. Tube subcylindrical, 1.2-2 mm long, densely glandular-hirsute in the upper half. Limb campanulate, 1.8-2 mm long; lobes triangular-ovate, 0.7-0.8 mm long, with a distinct resin gland near the apex. Anthers 1.5-1.7 mm long the broadly oblong-ovate obtuse appendage. Style branches 0.6-0.8 mm long, flattened, truncate. Achenes oblong-obovate, 2.5-4 mm long and 2-3 mm broad, creamy white; lateral wings 0.2-0.5 mm broad. Median pappus scale 1-2 mm long, 1-1.5 mm wide, glossy white with light brownish tinge; sublateral scales ca 0.5 mm long with often premorse apex. Achenes oblong-obovate, 2.5-4 mm long and 2-3 mm broad, creamy white; lateral wings0.2-0.5 mm broad. Median pappus scale 1-2 mm long, 1-1.5 mm wide, glossy white with light brownish tinge; sublateral scales ca 0.5 mm long with often premorse apex.