Tag: dichotomous key

I enjoyed Rachel’s Dichotomous Key. I found it easy to understand as she placed the option above, then statement in the middle then next option below, so it was easy to read the transition. The transition between each feature of the plant was easy to apply, visualize and understand the differences.

Dichotomous Key  A: Plant produces cones  A: Plant has flowers  A: Plant has needles (Plant 1) A: Plant has leaves (Go to B) B: Plant has smooth stems B: Plant has hairy stems (Go to C) C: Plant has white or yellow flowers (Plant 2) C: Plant has purple or …

Dichotomous Key 1A: Plant has needles …… Plant 1 Plant 1: A conifer with single linear alternating needles and grey bark. 1B: Plant does not have needles ….. go to 2 2A: Plant contains complete flowers…. Go to 3 2B: Plant does not contain complete flowers…. Plant 4               Plant …

Hello everyone, This is my attempt at a dichotomous key. I apologize for the delay as I was in the process of moving and my laptop was damaged. I’ve never heard of a dichotomous key before but this was quite the project!

This one kept throwing me for a loop. Grouped this based on what was flowers and what was plants. My details were based on stamens, pubescence and whether or not these plants were flowering. Uhhhh. I hope I did this right. Both flowering plants had some sort of pubescence on …

Attached is my attempt at a dichotomous key for the plants provided in week 2. Based on what I can see, plant 2 seems to be a complete flower. But, if that is not true, I’ve also created a second option for my key that circumvents that issue! Option 1 …

I found this assignment to be difficult because not all the photo sets share photos of the same parts of the plants. And I couldn’t tell in the white-flowered plant whether it was pistillate, staminate, or both. Like many others, I’m just hoping I did this assignment correctly.

Violets 1 and 2A. Has colored flower A’. Flower is colorless and considered neutralB. Flower has light purple tint with deep purple central ascendant veins B’. Flower is plain white with deep purple central ascendant veins C. Cordately shaped leaves C’. Reniform shaped leaves D. Entire marginD’. Serrated margin E. …

A. Coniferous-plant 1A1. Deciduous-B B. Alternate Leaf Arrangement-plant 2B1. Whorled Leaf Arrangement-C C. Linear Leaf Shape-plant 3C1. Oblong Leaf Shape-plant 4

1a: Plant with cones……. Plant 1         1b: Plant without cones             2a Leaves lanceolate or narrow and pubescent                         3a Leaves gathered near top of stem ….. Plant 3                         3b Leaves more numerous near base of stem …. Plant 2             2b Leaves ovate and pubescent …. Plant 4

A.      Has flowers – B A’.   No flowers – C B. White flowers – Plant 2 B’. Purple flowers – Plant 3                 C. Monodelphous – Plant 4                 C’. No Stamens – Plant 1   This dichotomous key is not applicable in other settings.

A. Plant has needles —— plant 1 A’. Plant does not have needles —— B B. Leaves are oblong in shape —— plant 4 B’. Leaves are lance-shaped ——- C C. Flower petals are white —- plant 2 C’. Flower petals are purple —- plant 3

Dichotomous key A = tree like —————————————————————— B A1 = herbaceous ——————————————————————C B = pine cones —————————————————————— pine  B1 = no pine cones———————————————————— willow  C = entire margin, simple leaf ——————————————————– sapling willow  C1 = compounding leaves ————————————————————— D D = odd pinate compound————————————– rock cress young D1 palmate compound …