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 shows the plant flowering on the left and the hastate leaves on the right.
*Pell, S.K., Angell, B. (2016). A botanist’s vocabulary: 1300 terms explained and illustrated. Portland: Timber Press.
Autochore: A plant that is the major agent in the distribution of its own seeds or spores (as by special ejecting organs).* Jewelweeds (Impatiens pallida…
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…
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.*…
Sessile: Lacking a stalk; e.g., a leaf without a petiole.* Trillium luteum has a sessile flower. It sits directly on top of the leaves (bracts)…