Lab 2 - Mustard and Morning Glory Family

Question 1

identifying characteristics of mature ball mustard

Answer 1

-long, narrow rosette leaves with entire margins
- sessile upper stem leaves with lanceolate shape and arrowhead base
-very fuzzy leaves
- bright yellow, small flowers

Question 2

identifying characteristics of dog mustard

Answer 2

• hairy, oblong, rosette leaves with deep, symmetrical lobing
• pale yellow flowers

Question 3

identifying characteristics of mature flixweed

Answer 3

• first true leaves have 3 lobes and opposite
• finely divided, greyish, hairy leaves
• small, pale yellow flowers

Question 4

identifying characteristics of mature wild mustard

Answer 4

• stem and leaves covered in stiff hairs
• lower leaves petiolate and deeply lobed
• upper leaves sessile and not lobed
• bright yellow flowers

Question 5

identifying characteristics of mature common pepper-grass

Answer 5

-basal rosette leaves that are deeply and irregularly lobed
- stem covered in short hairs
- white flowers

Question 6

identifying characteristics of mature shepherds purse

Answer 6

• First leaves start out entire and then new leaves start lobing (rosette)
• upper surface of leaves hairy
• upper leaves clasp stem
• small white flowers and triangular silicles

Question 7

identifying characteristics of mature stinkweed

Answer 7

• upper leaves sessile, lower petiolate with variable lobing
• glabrous rosette
• small white flowers and circular silicles with notch

Question 8

identifying characteristics of mature field bindweed

Answer 8

• wiry stems
• alternate, arrowhead shaped with rounded tip at apex

Question 9

identifying characteristics of mature black medick

Answer 9

-compound trifoliate leaves (looks like clover)
- small, yellow, pea-like flowers

Question 10

identifying characteristics of mature storks bill

Answer 10

• simple pinnate, deeply divided leaves
• pink flowers

Question 11

identifying characteristics of seedling storks bills

Answer 11

-3 lobed cotyledons