Dichotomous Key Exercise, Module 2

A. With cones- plant 1 A’. Without cones- see B          B. flowers with white petals- plant 2          B’. flowers without white petals- see C.               C. flowers with violet hues petals- plant 3               C’. flowers without violet hued petals- plant 4

Dichotomous Key

This is my very first Dichotomous Key. Hopefully this makes sense!  1.Glabrous Stem:  A. Needles, stomatiferous on all sides, cone……… Plant 1 B. White petal, pubescent peduncle………………..Plant 2 2. Pubescent Stem:  C. Violet petal, whorled leaf arrangement…………..Plant 3 D. Pubescent leaves with distinct apex……………..Plant 4

Dichotomous Key

1A: Has needles; woody; cones present….Plant 1 1B: No needles present….Go to 2               2A: Has flowers with petals….Go to 3               2B: Petals absent; incomplete flower….Plant 4                              3A: 4 petals, white; gamosepalous; inferior ovary….Plant 2                              3B: 6 petals, purple; polysepalous; superior ovary….Plant 3

Dichotomous Key

By: Hattie Casserly A. Plants with flowers: Common yarrow Achillea millefolium L. (Asteraceae). Lavender, Lavandula angustifolia L. (Lamiaceae). Moonshine yarrow, Achillea clypeolata x taygetea’ A. (Asteraceae). B. Plants without flowers: Rosemary, Rosmarinus officinalis L. (Lamiaceae). Coast live Oak, Quercus agrifolia N. (Fagaceae). Ivy, Hedera helix L. (Araliaceae). 2A. Flowering plants in …