serrulate

Leaves.—Alternate; petioled; oblong; entire or serrulate; four inches or so long.

From The Wild Flowers of California: Their Names, Haunts, and Habits by Mary Elizabeth Parsons

Leaves pale-green beneath, obscurely serrulate White Ash, Fraxinus americana. 5b.

From The Plants of Michigan Simple Keys for the Identification of the Native Seed Plants of the State by Henry Allan Gleason

Pubescent or glabrate; stem slender, simple, with few large heads terminating slender branchlets; leaves lanceolate, very acute, narrowed to a sessile base, sparingly serrate or serrulate; scales linear-attenuate, equal, mostly herbaceous; rays blue.—N. Dak. and westward.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Finely pubescent and roughish, 3–7° high; leaves sessile, ovate-oblong, acute, triply-nerved above, the broadly cuneate base, serrulate; scales loose, attenuate, mostly 6–8´´ long, hairy.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Embryo straight, nearly as long as the albumen; radicle longer than the cotyledons.—Shrubs with membranaceous deciduous oblong-ovate serrulate leaves, soft-downy beneath, and large short-peduncled flowers solitary in their axils.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray