R. longistylum
Species
| Subgenus | Rhododendron |
| Section | Rhododendron |
| Subsection | Tephroplepa |
| Epiphytic/Terrestrial | terrestrial |
| Mature Wild Height | 200 cm. (7ft.) |
| Bloom Time | early midseason |
| Flower | tubular funnel-shaped |
| Flower Color | white |
| Leaves | oblanceolate |
| Winter Foliage | evergreen |
| Hardiness | H2 |
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