Botanical Nerd Word: Cupule
Cupule: A cup-like sheath surrounding or enclosing certain fruits, e.g. the acorn of Quercus (Oaks).* The acorns on this English oak (Quercus robur) are maturing….
Category Archives: Word of the Week
Botanical Nerd Word: Pterocaulous
Pterocaulous: With winged stems.* Euonymus alatus, also known as winged euonymus or burning bush, is a common garden shrub from Asia that has become invasive…
Botanical Nerd Word: Twining
Twining: Coiling or spiraling around a support (usually another stem) for climbing.* Many plants climb by twining. For example, dog-strangling vine. This one is twining…
Botanical Nerd Word: Receptacle
Receptacle: In flowers and fruits, tissue to which all the floral whorls are attached.* A strawberry is not a berry at all. It is actually…
Botanical Nerd Word: Hastate
Hastate: Arrowhead-shaped with basal lobes pointing outward from the midvein.* Blue vervain (Verbena hastata), as the species name implies, has hastate leaves. The image above…
Botanical Nerd Word: Sarmentose
Sarmentose: Having long, thin runners (stolons).* Strawberries produce long runners, with new plantlets rooting along the ground. The image on the right shows the long…
Botanical Nerd Word: Ligule
Ligule: The membranous appendage arising from the inner surface of the leaf at the junction with the leaf sheath in many grasses and some sedges.*…
Botanical Nerd Word: Rhizome
Rhizome: An underground, usually horizontal stem, such as that of ginger.* Irises grow from horizontal rhizomes that look much like pieces of ginger. Though they…
Botanical Nerd Word: Cyathium
Cyathium: The inflorescence in the genus Euphorbia, consisting of a cup-like involucre containing a single pistil and male flowers with a single stamen.* *Harris, J.G.,…
Botanical Nerd Word: Coriaceous
Coriaceous: Having a leathery texture.* For example, the leaves of rhododendrons. *Allaby, M. (2006). A dictionary of plant sciences (Revised ed.). Oxford: Oxford University Press.