Horsfordia Newberryi, Newberry's Velvet-Mallow

Horsfordia newberryi is a relatively tall species, usually between 6 and 9 feet, inhabiting a variety of desert habitats, and often blooming in two periods, early winter and early spring. Stems are yellowish-green, and densely covered by short, star-shaped hairs, as are the leaves and calyces. Leaf margins are minutely toothed; leaf bases slightly rounded, or cordate.

Flowers, solitary or in small groups, are produced at the top of the stem and at the upper leaf nodes. The bell-shaped calyces are around 0.2 inches long, shallowly divided into broad, triangular lobes, while the petals are around 0.4 inches; yellow (less often pale orange), hairless and overlapping, enclosing a cluster of stamens and styles.