serrate造句
31. Leaves undivided or 3- or 5(or 7)- lobed , margin usually serrate.
32. Calyx segment margin denticulate or serrate, at least once near apex.
33. Plants sparsely scabrous; ultimate leaf segments irregularly serrate or dentate.
34. Leaves palmately compound, in whorls of 3-5; leaflets entire to serrate or dentate or pinnately lobed.
35. Trees or shrubs. Leaves petiolate , entire or serrate at margin.
36. Leaves usually double serrate, base broadly cuneate to cordate; plants more than 30 cm tall.
37. Petiole green, leaf blade elliptic to oblong, margin sometimes serrate; flowers ca. 5 cm in diam. ; stamens 20–25.
38. North American deciduous tree (Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.
39. Objective:to compare content of huperzine A in different plants serrate clubmoss herb to optimize the raw material.
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