Forb and Graminoid Identification

While doing belt transects, this skill was essential to the research project. Without knowing what all of the grasses and leafy plants were, how could you determine if it was a native plant or not?

During the first month of employment on this project, the members of the team all went to local herbariums and studied identification keys so we could accurately identify all the foliage we came across.

Learning this skills was the most rewarding experience I’ve had at a job. The task was daunting in the amount of things you had to know. When I was unsure of something, I would take a picture from every single angle I could, or even dig out the plant by the roots so I could later identify what it was. This lead to many plant pressings and a huge amount of pictures. I was even working on a photographic guide to the wild flowers and also a guide to ligules. Ligules are used to identify grasses before the seed head has had a chance to grow. It’s the only way to determine which species a grass is in the springtime, even for cool season grass.

I did this for 9 hours a day for 5 months and learned an immense amount of information. I wish I could have retained it all. Some random images from the collection are below.

Key to North Dakota Grasses and good short photographic guide to forbs of North Dakota. The later includes a lot of very common plants to the North Dakota prairie. Another short photographic guide is located here.

061208 Weld county - Weber WPA
Geum triflorum-Prairie Smoke
061208 Weld county - Weber WPA_1
Basal foliage of G. triflorum
061208 Weld county - Weber WPA_2
Lithospermum canescens – Hoary Puccoon
061208 Weld county - Weber WPA_7
Cynoglossum officinale – Houndstongue
061208 Weld county - Weber WPA_8
Elaeagnus commutata – Silver Berry
061208 Weld county - Weber WPA_14
Artemisia frigida – Pasture Sage
061208 Weld county - Weber WPA_15
Cerastium arvense – Prairie Chickweed
070208_3
Panicum capillare – Witchgrass
070208_5
Witchgrass closeup of flower
070208_6
Witchgrass ligule
IMG_3873
Panicum capillare – Witchgrass
070208_8
Witchgrass ligule
070208_2
Unidentified ligule
070208_10
Unidentified ligule with long sheath
070208_12
Long sheath and smooth ligule – unidentified
070208_16
Sphaeralcea coccinea – Scarlet Globemallow
070208_17
Toxicodendron radicans – Poison Ivy
070208_21
Another shot of the very hair, hairy ligule and leaf of this unidentified grass sp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I wish I could identify these grass species where I just have ligule pictures, but it’s nearly impossible without seeing the actual plant. I didn’t take enough pictures to identify it that way.

070208_24
Carex family sedge
070208_26
Carex ligule
070208_27
Carex ligule from another angle
070208_30
Amorpha canescens – Leadplant inflorescence
070208_31
Amorpha foliage characteristics, part of the Fabaceae family (characteristic compound leaf structure)
070208_35
Lytta nuttalli – Nuttal Blister Beetle
070208_36
Cypripedium candidum – Lady Slipper Foliage
070208_39
Cypripedium candidum – Rare Lady Slipper on the North Dakota Prairie
070208_41
Another Lady Slipper photo
070208_44
Great shot of a rare prairie lady slipper
070208_51
Wheatgrass sp based on clasping auricle presence – possibly quackgrass
blanketflower2
Gaillardia aristata – Blanketflower
IMG_4012
Onosmodium molle – False Gromwell
070208_54
Unidentified hairy ligule with hairy leaf margins
IMG_3805
Anemone canadensis – Anemone flower
IMG_3842
Asclepias sp, probably incarnata – pink/swamp milkweed
IMG_4054
Asclepias spp. Probably sullivantii – Prairie Milkweed
IMG_4068
Asclepias speciosa – Showy Milkweed
IMG_4070
Asclepias speciosa – Showy Milkweed
IMG_4056
Asclepias spp. Probably sullivantii – Prairie Milkweed
IMG_3863
Penstemon digitalis or gracilis – Beardtongue
IMG_3869
Hordeum jubatum – Foxtail Barley
IMG_4026
Lilium philadelphicum – Wood Lily, or at least a Lily species
IMG_4031
Lily spp.
IMG_4181
Lactuca tatarica – Blue Lettuce
IMG_4182
Lactuca tatarica – Blue Lettuce
IMG_4183
Lactuca tatarica – Blue Lettuce
IMG_4187
Rosa arkansana – Wild Prairie Rose
IMG_4194
Monarda fistulosa – Wild bergamot
IMG_4188
Rosa arkansana – Wild Prairie Rose
IMG_4199
Bouteloua curtipendula – Sideoats Grama
IMG_4201
Bouteloua curtipendula – Sideoats Grama
IMG_4203
Bouteloua curtipendula – Sideoats Grama
IMG_4206
Bouteloua gracilis – Blue Grama
IMG_4207
Bouteloua gracilis – Blue Grama
IMG_4210
Bouteloua gracilis – Blue Grama
IMG_4211
Ratibida columnifera – Prairie coneflower
IMG_4262
Echinacea angustifolia – Purple Coneflower – Echinacea
IMG_4264
Andropogon geradii – Big Bluestem
IMG_4265
Andropogon geradii – Big Bluestem – Turkey foot looking inforescence
IMG_4267
Andropogon geradii – Big Bluestem ligule
IMG_4270
Andropogon geradii – Big Bluestem ligule
IMG_4271
Schizachyrium scoparium – little bluestem
IMG_4274
Schizachyrium scoparium – little bluestem
IMG_4276
Cactus spp on the prairie

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This was just a short list of the plants I saw and categorized. It’s unfortunate that I didn’t classify these plants shortly after I took the pictures. The grasses are hard to identify without having the whole plant in front of me, but during the survey period, I knew them perfectly. I wish I would have continued to create a ligule guide with key to the North Dakota prairie. The prairie there is a mix of short and tall grass, with hundreds of native grass species present, with nearly all of them being bunch grasses. Maybe I will get the opportunity again to classify the grasses and forbs of ND.

Leave a Reply