Houstonia (plant) Houstonia (plant) Houstonia (bluet) is a genus of plants in the family Rubiaceae. Many species were formerly classified, along with other genera since segregated elsewhere, in a more inclusive genus "Hedyotis". Bluets are often small and delicate. For example, "H. rosea" may grow only one inch tall. Some species are single stemmed and others have multiple stems in bunches. Flowers are blue, purple, lavender, white, or rose, often with shades of one color present in an individual population. Flowers have 4 sepals, colloquially denominated "petals", a salverform corolla with 4 lobes, and an inferior ovary. Some species exhibit heterostyly. The
Adonis (plant) for use in gardens, and have been introduced to North America. "Adonis" spp. contain poisonous chemicals similar to those found in many other genera in the Ranunculaceae. Adonis (plant) Adonis is a genus of about 20–30 species of flowering plants of the crowfoot family, Ranunculaceae, native to Europe and Asia. The species grow to in height, with feathery, finely divided leaves. Their flowers are red, yellow or orange and have 5–30 petals. The Autumn Adonis, pheasant's-eye ("A. annua"), has flowers with bright red petals. The generic name "Adonis" refers to the mythic character Adonis, a lover of the goddess Aphrodite