Table 1. Morphological differences between Styrax zhejiangensis and S. macrocarpus.
| Taxonomic traits |
Styrax zhejiangensis |
Styrax macrocarpus |
| Stem |
1.5-3 (-7) m, shrub-like habit |
6-9 (-12) m, tree-like or small tree-like habit |
| Petiole |
Upper 1-3 mm, middle nearly absent |
Both upper and middle 2-5 mm |
| Flowering phenology |
Leaves and flowers open simultaneously |
Flowers open before leaves |
| Flower diameter |
4.0-5.5 cm |
6.0-7.5 cm |
| Corolla lobe length |
1.8-2.7 cm |
2.8-3.8 cm |
| Corolla lobe pubescence |
inconspicuous or absent |
Conspicuous |
| Stamens, number |
13 to 16 |
11 to 15 |
| Stamen, length |
10-12 mm |
14-16 mm |
| Seeds |
with stellate trichomes |
without stellate trichomes |