Turnera subulata (White Alder) [Panama – Equador]: Perennial herb, often woody at the base, 30-80 cm high, with a frequently very strong taproot; stems terete, leafy over a considerable length, densely appressed pubescent. Leaves not crowded, ovate-elliptic or ovate-oblong from a cuneate entire base, acute or rather obtuse, very distinctly dentate-serrate, rather densely gland-dotted beneath, on both surfaces, especially the lower, appressed white-pubescent (hairs on the nerves longer and more closely set), 1 3/4-9 cm by 3/4-4 cm; midrib and usually also the erecto-patent lateral nerves distinctly prominent beneath. Petiole with 2 rather large apical lateral glands, appressed hairy, 1/2-1 1/4 cm long. Stipules erect, very minute, long-hairy. Flowers in the higher leaf-axils. Pedicel 1/3-1/2 cm.

In the 'Ankle Beauties' Blossoming At Our Feet: Part 1 photo essay.