Category: Dichotomous Keys

A. Plant has a flower – B A’. Plant lacks flower – Plant 1 B. Flower have petals – C B’. Flower lack petals – Plant 4 C. Less than 4 petals C’. At least 4 petals – D D. 4 (white) petals – Plant 2 D’. 6 (purple) petals …

A: Without Flowers B: Tree with pinecones – Plant 1 B1: Small exposed stamens and pistils, leathery leaves – Plant 4 A1: With flowers C: Multiple white flowers per stalk – Plant 2 C1: Single purple flower per stalk – Plant 3

Anne Young    amyoung14

Anne Young   amyoung14 I didn’t realize I had such a diverse selection of dishware. Without looking, I suspect there is an artifact key for pottery/dishware since a lot of it shows up in archaeological digs. I know there is a key for beads.

A. Plants without flowers……………………… Plant 1 A’. Plants with flowers: B. Plants without petals…………….. Plant 4 B’. Plants with petals: C. Plants with white petals…………. Plant 2 C’. Plants with blue petals…………… Plant 3

A.  Plants with needle-like leaves; non-flowering plant…..………Plant 1 A1.  Plants with needle-like leaves, broad leaves, or stemless; flowering plant B.  Plants with white or yellow petals C.  Plants with white petals…………………………………Plant 2 C1.  Plants with yellow petals……………………………..Plant 3 B1.  Plants with no petals……………………………………………Plant 4

1A.  Leaves needle-like; stems woody…………………………………………………………………………….      Plant 1 1B.  Leaves with flattened blade, simple or lobed; stems herbaceous………………………………………………       2 2A.  Leaves deeply lobed; stamens numerous; petals purple………………………………………………      Plant 3 2B.  Leaves unlobed; stamens 2-6; petals white or absent…………………………………………………..      3 3A.  Flowers either staminate or pistillate on separate inflorescences; petals absent…..      Plant …

A. Bark present; leaves needle-like – Plant 1 A’. Bark absent; leaf with blade – go to B B. Perianth absent, flowers in catkins – Plant 4 B’. Perianth present; flowers single or in a raceme – go to C C. Flowers white; single pistil – Plant 2 C’. Flowers …

A Plant has cone -plant 1 A1 Plant has flower B1 Flower has white petal-plant 2 B2 Flower has purple petal-plant 3 C1 Flower has no petal    

Module 2: Dichotomous Key A. Coniferous plants…Plant #1 A’. Herbaceous plants B. Leaves compound… Plant #3       B’. Leaves simple             C. Leaves opposite…Plant #4             C’. Leaves alternate…Plant #2

Shellie Tabb Dichotomous Key   A Plant has no flowers (PLANT 1)  A1  Plant has flowers with petals white or purple             B    Plant has flowers with white petals (PLANT 2)             B1  Plant has flowers with purple petals (PLANT 3)                     C  Plant has flowers …

A. The plant has needles (Plant 1) A’. The plant has leaves  – B B. The plant has no petals  (Plant 4) B’. The plant has petals  – C C. The plant has white petals (Plant 2) C’. The plant has purple petals (Plant 3)

Plant dichotomous key Plant 1 Needles Cones Woody stem No flowers Plant 2 White flowers 4 petals Plant 3 Purple flowers Plant 4 Flower No petals   A. Plant has no flowers (Plant 1) A’. Plant has flowers B. Plant has no petals (Plant 4) B’. Plant has petals C. …

Module 2: Dichotomous Key BIOL F195 – 2020 Hufford   A.              Trees with woody stem, needle-like leaves, cones……………….…………Plant 1 B.              Herbaceous plants , non-woody stem a.     Flowers white, whorled leaves with alternate arrangement on flowering stalk, star-shaped (stellate) hairs…………………………………………………………………………….Plant 2 a.     Flowers purple, elongated sepals with fine hairs, multiple yellow-green …

Dichotomous key A: Conifer—Bin 1 A’: Not a conifer B: Purple Flowers—Bin 2 B’: Not purple Flowers C: Yellow flowers—Bin 3 C’: Other colored flowers—Bin 4