This is a graphite drawing of a beautiful perennial plant that I picked up at the store the other day. It is called the "Sun Star" or "Orange Star" (Ornithogalum dubium). The flowers, though you can't tell here, are a bright orange color with some bits of dark green at the tip of the flower petals.
The tag says that it is native to South Africa and blooms from one to three months. It takes bright, indirect sunlight indoors and you have to keep the planting mix moist. Once the flower spikes are spent, you remove them from the base, rather than just the blossom. I really like the structure of this plant and how the flowers emerge from the cone-like structure in the center. Hope you enjoy!