Recently, while visiting Forks of the Credit Provincial Park, I encountered a plant that I had never seen before.
I took a few, not very precise photos and hoped that I could identify it at home. No luck and even the iNaturalist App was unsure.
Bursting with curiosity, I undertook the two hour round trip journey and returned to the park this morning to have a closer look.
Using the Newcomb’s Wildflower Guide, you need three bits of information to settle on an identification.
- number of petals.
The flowers are numerous but tiny. This photo shows that there are 4.
- type of leaf
The leaf is so toothed that it is considered “divided”.
- alternate or opposite leaves
The leaves are alternate on the stem.
This leads to page 145 in Newcomb’s. The plant is Marsh Yellow Cress (Rorippa islandica).
Black bees on the clover-heads drowsily clinging,
Where tall, feathered grasses and buttercups sway,
And all through the fields a white sprinkle of daisies,
Open-eyed at the setting of day. – Abba Gould Woolson (1838–1921)