Leaves develop chlorosis; stems are short and slender, and anthocyanin discoloration occurs on stems, petioles, and lower leaf surfaces.

叶片变得萎黄，茎短而纤细，并且在茎、叶柄和叶片下表面会出现花青素变色。

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Some gardeners use leaf mulch fine particles of leaves instead of wood mulch around trees, especially young trees.

VOA: special.2009.06.30

For the first row nearest the fans, they generally suggested trees that lose their leaves in the fall or trees with waxy leaf surfaces.

VOA: special.2009.09.08

Harvest leaf lettuces when the leaves are big enough to eat.

VOA: special.2009.04.28

Or so it seemed until the 1950s, when collector Forest Sweet, who had accumulated six stray leaves (a leaf being a single two-sided page), deduced they came from Washington's original.

FORBES: It's Bunk?

Which is why it matters so much that scientists have, indeed, made progress toward identifying the genes that determine how many leaves a four-leaf clover has.

FORBES: The Four-Leaf Clover Gene?

It also replicated the randomness of nature: as one leaf moves, other leaves followed.

WSJ: Culture City: An Opera Vet Tries to Raise The Circus