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Fastigiate: Having flowers or branches whose extremities form a tapering or cone-like outline.* The pyramidal English oaks (Quercus robar ‘Fastigiata’) growing at the end of the Entry Garden Walk have a …

Bacciferous: Producing berries.* Any plant that produces true berries is bacciferous, like Callicarpa (Beautyberry). *Bagust, H. (1992). The gardener’s dictionary of horticultural terms. London: Cassell.

Parastichy: Spiral formed by tracing the points of attachment of organs on an axis, such as leaves along a stem or scales along the central axis of a cone.* The Euphorbia …

Fasciated: Compressed into a bundle or band; grown closely together; with the stems malformed and flattened as if several separate stems had been fused together.* One of the Berberis in the …

Umbo: A blunt or rounded protuberance, as on the ends of the scales of some pine cones. Some pines have very pronounced umbos that can be quite prickly. *Harris, J.G., …

Lamina: The usually flattened, blade-like portion of a leaf, as distinct from the petiole and leaf base. The shape of the lamina and the nature of its margin are important taxonomic …

Pepo: Unilocular berry with hard exocarp, characteristic of the gourd family (Cucurbitaceae).* The pumpkin is a classic example of a pepo. In fact, the species most often used to make jack-o-lanterns …