Print by an unknown artist (1870s). See discussion
The word this week, written in kanji, is kuchinashi (gardenia) for those who want to practice their calligraphy.
Here are relatively simple sketches of gardenias for practice.
I used sumi and a touch of yellow for this painting which was done in bokusai-ga style. Bokusai-ga basically means a black ink picture with a touch of color.