PlantTerminologyActivity_F24_KEY.pdf

Plant Terminology Activity ENVR 162: Fall 2024 Answer key Description: The answers to the in-class activity are provided in bold. Note the conventions of writing scientific and common names. Scientif...

Plant Terminology Activity ENVR 162: Fall 2024 Answer key Description: The answers to the in-class activity are provided in bold. Note the conventions of writing scientific and common names. Scientific names: italics (or underlined if hand-written) with genus only capitalized; common names: lower case name unless a proper noun is in the same; no italics. 1. Clintonia uniflora: queen’s cup a. Describe the leaf margin. Entire (smooth/without serrations) b. Describe the leaf venation. Parallel c. Is this a monocot or eudicot? Monocot 2. Rubus parviflorus: thimbleberry a. What is the life span of this plant. Perennial (multiple seasons) b. What is the plant habit? Shrub (note it’s woody stems) c. Describe the leaf shape. palmately 3- to 7-lobed, double-saw-toothed or maple-leaf shaped, fuzzy 3. Sambucus cerulea: blue elderberry a. Describe the leaf complexity (simple of compound)? Compound b. What is the plant habit? shrub c. Describe the leaflet margins. Saw-tooth/dentate 4. Galium triflorum: sweet-scented bedstraw a. What is the leaf arrangement of this plant? whorled b. This plant’s growth is described as “prostrate”. What does that mean? Trailing/growing along the ground c. This plant has Velcro-like trichomes. Define trichomes. Leaf/epidermal hairs 5. Pinus ponderosa: ponderosa pine a. This tree is a gymnosperm. Define gymnosperm. Cone-bearing, naked seed b. Ponderosa has needles in bundles of how many? 3 c. Describe the needles. Long and pointed or needle-like 6. Corylus cornuta: beaked hazelnut a. Describe the leaf margin. Doubly serrated b. Describe the leaf venation. Netted (eudicot) c. Describe the leaf arrangement. Alternate 7. Centaurea stoebe: spotted knapweed  a. What is the life span of this plant? Biennial (two seasons of growth) b. Describe the plant habit. Herb/herbaceous c. This plant is described as invasive. Define this term. An organism that is not Indigenous, or native, to a particular area. Invasive species can cause great economic and environmental harm to the new area 8. Symphoricarpos albus: common snowberry a. Describe the leaf arrangement. opposite b. Describe the leaf complexity. simple c. Describe the leaf shape. Oval to elliptic 9. Prunus virginiana: choke cherry a. Describe the leaf arrangement. alternate b. Describe the leaf complexity. simple c. Describe the lenticels and their function. Raised, orange, elongate. Gas exchange. 10. Populus tremuloides: trembling aspen a. This is an angiosperm. Define. Flowering plant b. Define and describe the petiole. The stalk connecting the blade to the stem. flat c. This plant is dioicous. Define. Male and female floral parts on separate plants.