When wild land is developed, plants once native to that site often recolonize the construction scars alongside new landscaping.
Can you see where that occurred below?
In arid desert (my examples) or even semi-arid steppes, conditions are especially harsh for that regrowth.
Some plants rapidly heal such scars, while others take decades, if at all. The concern here is plants native to the site, not invasives.
Purple Threeawn / Aristida purpurea var. longiseta is the golden-green carpet barely forming the reddish fringes and seed heads. A few Sunflower / Helianthus spp. are in there, plus some invasive annuals (kochia?). Areas of gold-flowering, mat-like Pectis angustifolia / Limoncillo are present, too.
This side of the road was mown or herbicided to eradicate the above natives, which control erosion better than gravel while providing other functions, habitat value, and aesthetics.
The Soaptree or Palmilla / Yucca elata were installed per plan, while natives alongside installed plants including the creosote bush stand were somehow not removed during road construction.
Often such recolonizing plants are considered attractive, but they aren’t for sale. People often ask me, “ooh, what’s that?” in admiration.
Those attributes demonstrate what such plants are: priceless.
Therefore, they should not be removed in the first place; if they are removed allow them to stay, but selectively weed out invasives.
On the opposite side of the street, the tan grass clumps are the same Purple Three Awn, but these don’t get eradicated and not a carpet.
What a difference and for the better, on the far side of the street.
While protecting areas from unnecessary disturbance is usually more economically-sound and better, site development disconnected to the land is where maintenance skill and client savvy really must meet.
9/6/17 weather: 89 / 64 / 0.00