Fl ora ▁of ▁the ▁Pacific ▁Category : Mar ine ▁bi ota ▁of ▁North ▁America ▁Category : Fl ora ▁of ▁California ▁Category : Fl ora ▁of ▁B aja ▁California ▁Category : Fl ora ▁of ▁B aja ▁California ▁Sur ▁Category : Fl ora ▁of ▁the ▁West ▁Coast ▁of ▁the ▁United ▁States ▁Category : N atural ▁history ▁of ▁the ▁Channel ▁Islands ▁of ▁California ▁Category : L amin arial es ▁gener a ▁Category : Mon ot yp ic ▁brown ▁alg ae ▁gener a <0x0A> </s> ▁Rub ber ▁mul ch ▁is ▁a ▁type ▁of ▁mul ch ▁used ▁in ▁gard ens ▁and ▁sust ain able ▁land sc aping ▁that ▁is ▁made ▁from ▁ ▁rec yc led ▁rub ber . ▁ ▁Com position ▁▁ ▁Rub ber ▁mul ch ▁generally ▁consists ▁of ▁either ▁waste ▁t ire ▁buff ings ▁or ▁n ug gets ▁of ▁synth etic ▁rub ber ▁from ▁t ires ▁that ▁are ▁ground ▁up ▁whole , ▁after ▁having ▁their ▁steel ▁bands ▁removed . ▁Al most ▁any ▁t ire ▁can ▁be ▁used ▁to ▁make ▁rub ber ▁mul ch , ▁including ▁passenger ▁vehicle ▁t ires ▁and ▁large ▁tr uck ▁and ▁tra iler ▁t ires . ▁Buff ings ▁are ▁produced ▁from ▁rec yc led ▁tr uck ▁t ire ▁t read ▁when ▁the ▁remainder ▁of ▁the ▁worn - down ▁t read ▁is ▁removed ▁from ▁the ▁t ire ▁prior ▁to ▁ret reading . ▁Buff ings ▁are ▁generally ▁thin ▁sli vers ▁of ▁rub ber . ▁N ug gets ▁range ▁in ▁size ▁from ▁ 1 0   mm ▁to ▁ 3 2   mm , ▁or ▁ 3