A botanicum is a collection of plants kept for study— a botanical cabinet. I'll never be able to afford the real thing, so here's my digital effort: each species is catalogued. Click to drag.
Includes the tallest living trees on Earth, up to 116.22 m tall and 8.9 m in diameter. Monoecious — pollen and seed cones on the same plant.
Hesperocyparis macrocarpa is Greek for "large-fruited western cypress" (hesperos + kyparissos, makros + karpos). A medium-sized coniferous evergreen, often growing irregular and flat-topped from the strong winds typical of its native coast.
Rhododendron is Greek for "rose tree" (rhodon + dendron). A dense evergreen shrub of the southern Appalachians, usually up to 3 m tall, with violet-purple flowers in late spring.