Exam 2 Flashcards
weed
plant that is not wanted in an area
annuals
germinate, grow, and die in one season
summer annual
germinate in late spring and die around halloween
bienniels
1st year grow a rosette and 2nd year put off seeds stalks then die
perennials
3 or more years of growth with no reproductive portions till year 2
monocots
grasses with 1 cotyledon
dicots
broadleaves with 2 cotyledons
woody weeds
develop woody structural tissue, vines and trees
spore producers
liverworts, mosses, horsetails
Grasses
fibrous roots, parallel veins in leaves
broadleaves
taproot, reticulated veins in leaves
Staghorn sumac
Anaccardiaceae, small tree with alternate and pinnately compound leaves with serrated edges, hairy stem unlike smooth sumac with no hairs
poison ivy
similar to virginia creeper that has 5 leaflets per leaf and palmate
rhizomes
lateral shoot that elongates underground
stolons
horizontal, aboveground stem elongation