In the 1930s and 1940s, Russian scientists identified mustard as an indicator plant
growing profusely over underground deposits of valuable metals.
Silk states that the "aim of this study is to quantify disturbance in lowland dipterocarp forest in East Kalimantan (Indonesia) with the use of a small set of indicator plant
species (Macaranga and Mallotus, Euphorbiaceae).
Thus according to Jacobsen, Marah is an indicator plant
for the presence of a nearby source of water.
Hence, the worker did not settle for an indicator plant from among those found abnormal.
The search for a short-lived indicator plant was deemed important because the coconut, being a perennial, was expected to take years before giving a definitive reaction.
It is also helpful to understand the linkage of indicator plants
already on the property, which can tell you if your site is well-suited for your woodland garden.
Salt is also developing indicator plants
, which change their appearance when they detect metals in the environment.
Weeds are indicator plants
that provide us with information as to the site and soil characteristics.
are useful in attracting pests for early detection.
If we get our limit of pheasants early, we'll head over to a red maple swamp bordered by aspens and alders - indicator plants
that advertise their likely presence.