NR 220 Range OA Final Exam Questions
with Correct Solutions|| Updated
2025/2026 A+ Graded||100% Guaranteed
Pass!!!
What are invaders? - ANSWER ✓ they appear after extreme disturbances
(cheatgrass)
What are exclosures? - ANSWER ✓ used as controls to see effects
(two in Pingree)
Bromus tectorum (bros are hairy and they nod to each other) - ANSWER ✓
annual, invader from Europe-successful
hairy
*panicle, nodding*
awns 1/2 in
Erysimum asperum (spurum-hook) - ANSWER ✓ biennial mustard
*4 petals*
yellow flowers
*fish hook subdivisions on leaf margs*
Fragaria ovalis (strawberry) - ANSWER ✓ moist enviros
*stoloniferious*
compound-3 leaflets
*white flowers*
red stems (stolons)
Geranium spp. - ANSWER ✓ white/purple flowers
*leaves with long petioles
sticky hairs on foliage*
smelly
palm divided
Harbouria trachypleura (whisk-broom parsley) - ANSWER ✓ *leaves highly
dissected (lungs)
, umbel inflor.*
yellow flowers
Helianthus pumilus (dwarf sunflower) - ANSWER ✓ common disturbed sites
invader
mostly opposite
*coarse hairs on stem*
yellow composite flower
Lupinus argenteus (common lupine) - ANSWER ✓ many lupines poisonous
*palmately compound*
*raceme*
white-blue flowers
Mertensia spp. (bluebells) - ANSWER ✓ moist sites
*waxy leaf*
*fleshy feel*
*blue tubular flowers*
Opuntia polycantha (starvation cactus) - ANSWER ✓ succulent
numerous thick spines on pads
bright lemon yellow flower
*photosynthetic at night; stomata closed during day*
Oxytropis lamberii (crazyweed) - ANSWER ✓ poisonous to herbs
flowers scapose on stalks w/ no leaves
purple/white flowers-*pointed keel petals*
*leaves always basal*
pinnately compound
Penstemon spp. - ANSWER ✓ purpleish-blue tube flowers
irregular 5 petaled-2 on top, 3 below
*opposite leaves*
*leaves waxy/folded*
Potentilla spp. (cinquefoil) - ANSWER ✓ leaves vary
*end in 3 leaflets*
grey-greenish
yellow flowers
with Correct Solutions|| Updated
2025/2026 A+ Graded||100% Guaranteed
Pass!!!
What are invaders? - ANSWER ✓ they appear after extreme disturbances
(cheatgrass)
What are exclosures? - ANSWER ✓ used as controls to see effects
(two in Pingree)
Bromus tectorum (bros are hairy and they nod to each other) - ANSWER ✓
annual, invader from Europe-successful
hairy
*panicle, nodding*
awns 1/2 in
Erysimum asperum (spurum-hook) - ANSWER ✓ biennial mustard
*4 petals*
yellow flowers
*fish hook subdivisions on leaf margs*
Fragaria ovalis (strawberry) - ANSWER ✓ moist enviros
*stoloniferious*
compound-3 leaflets
*white flowers*
red stems (stolons)
Geranium spp. - ANSWER ✓ white/purple flowers
*leaves with long petioles
sticky hairs on foliage*
smelly
palm divided
Harbouria trachypleura (whisk-broom parsley) - ANSWER ✓ *leaves highly
dissected (lungs)
, umbel inflor.*
yellow flowers
Helianthus pumilus (dwarf sunflower) - ANSWER ✓ common disturbed sites
invader
mostly opposite
*coarse hairs on stem*
yellow composite flower
Lupinus argenteus (common lupine) - ANSWER ✓ many lupines poisonous
*palmately compound*
*raceme*
white-blue flowers
Mertensia spp. (bluebells) - ANSWER ✓ moist sites
*waxy leaf*
*fleshy feel*
*blue tubular flowers*
Opuntia polycantha (starvation cactus) - ANSWER ✓ succulent
numerous thick spines on pads
bright lemon yellow flower
*photosynthetic at night; stomata closed during day*
Oxytropis lamberii (crazyweed) - ANSWER ✓ poisonous to herbs
flowers scapose on stalks w/ no leaves
purple/white flowers-*pointed keel petals*
*leaves always basal*
pinnately compound
Penstemon spp. - ANSWER ✓ purpleish-blue tube flowers
irregular 5 petaled-2 on top, 3 below
*opposite leaves*
*leaves waxy/folded*
Potentilla spp. (cinquefoil) - ANSWER ✓ leaves vary
*end in 3 leaflets*
grey-greenish
yellow flowers
