Streptanthus albidus smaller and narrower, sometimes linear in shape, and toothed or smooth-edged. Flowers occur at intervals along the upper stem. Each has a spherical to urn-shaped calyx of keeled sepals about a centimeter long with curving petals emerging from the tip. The calyx of sepals may be white to purple, depending on subspecies. The fruit is a long, narrow silique which may be 12 centimeters in length. There are two subspecies, both rare. Streptanthus albidus Streptanthus albidus is a species of flowering plant in the mustard family known by the common name Metcalf Canyon jewelflower. It is endemic to California, where
Limnophila (plant) serrated edges. Some species have flowers solitary in the leaf axils, and others have flowers in inflorescences. The sepals are arranged in a tubular calyx, and the corolla is tubular or funnel-shaped. The corolla has a lower lip with three lobes and an upper lip that is unlobed or double-lobed. "Cabomba caroliniana", a plant in a different family, is noted for having leaves that resemble those of "Limnophila". There are about 40 species in the genus. Species include: Limnophila (plant) Limnophila is a genus of flowering plants in the plantain family, Plantaginaceae. It is distributed in tropical and subtropical regions