Houstonia (plant) fruit is an often roughly cordate capsule enclosing many seeds and which usually dehisces via a suture across its apex. "Houstonia" consists of 20 species native to North America. Another 5 species are classified in the genus "Stenaria"; "Houstonia" without "Stenaria" is paraphyletic. Close relatives of the genus are "Oldenlandia microtheca" and, more distantly, "Arcytophyllum". Its members superficially resembles species of the genus "Myosotis" (Forget-me-nots), but are distinguished from the latter by having only 4 sepals (petals) instead of 5. Species accepted as of May 2014 are: Houstonia (plant) Houstonia (bluet) is a genus of plants in the family Rubiaceae.
Leptotes (plant) the apex of the pseudobulb without a protecting spathe and bears up to seven flowers, although fewer are more common. The flowers are relatively large when compared to the overall plant dimensions, normally partially bent and in some species forming groups with a very showy aspect. They are fragrant and this perfume can last from ten to twenty days. The appearance of the petals and sepals is similar, both are elongated although the petals are slightly more narrow. Flower colors are generally greenish, white or variable shades of pink and the labellum (a special petal attractive to pollinators) can be