Hastatus
/has-TAH-tus/🏷️ Taxonomy●● Intermediate
Also known as: hastata, hastatum
A leaf shape epithet describing a leaf whose base has two pointed lobes that project outward at roughly right angles — like the blade of a spear with its flanges. Distinct from sagittatus, where the lobes point backward. Appears as hastatus (masculine), hastata (feminine), or hastatum (neuter).
Etymology
From Latin hastatus, meaning "armed with a spear" or "spear-shaped," from hasta (a spear).
Example
“Rumex acetosella (sheep's sorrel) and Atriplex hastata (spear-leaved orache) both have the characteristic outward-pointing basal lobes that distinguish the hastate from the sagittate leaf base.”