OLEACEAE: Olive Family
KEY TO SPECIES OF LIGUSTRUM
1. Plants without flowers ........................................................ 2
2. Twigs glabrous except sometimes when very young; leaves glabrous ........... L. ovalifolium
2. Twigs minutely hairy; leaf blade glabrous or hairy ......................... 3
3. Leaf blade glabrous ..................................................... L. quihoui
3. Leaf blade hairy, at least on midvein of underside ...................... 4
4. Most petioles 1-3(4) mm; larger panicles 20-35 mm ... L. obtusifolium
4. Most petioles (2)3-7 mm; larger panicles (28)40-97 mm ..... ....... L. amurense
1. Plants with leaves and flowers ............................................... 5
5. Corolla tube shorter than to slightly longer than lobes .................................. L. quihoui
5. Corolla tube 2-3 X as long as lobes ...................................... 6
6. Twigs and leaves glabrous .............................. L. ovalifolium
6. Twigs and midrib on underside of leaf blade minutely hairy ............ 7
7. Calyx finely hairy ................................. L. obtusifolium
7. Calyx glabrous ......................................... L. amurense