
1. gradual progression of a lesion or tissue growth.
2. prostrate growth pattern of a plant, e.g. c. buttercup (Ranunculus repens), c. caustic (Euphorbia drummondii), c. charlie (Glechoma hederacea), c. Crofton weed (Eupatorium riparium), c. indigo (Indigofera spicata), c. knapweed (Acroptilon repens), c. lantana (Lantana montevidensis), c. mallow (Modiola carolinianum), c. millotia (Millotia greevesii), c. oxalis (Oxalis corniculata), c. saltbush (Atriplex semibaccata).