Another Brief History of the Sunset
A Thing that Spreads Intended to Stop Spreading — Margaretha Haugwout
2017
Hottentot-fig also known as suurvy, hotnotsvy, sour fig or iceplant. Now widely considered invasive, "Highway iceplant was brought to California to in the early 1900s for stabilizing soil along railroad tracks." And it remains.
Large scale planting was continued by Caltrains through the 1970’s.