Introduced from China by Mikinori Ogisu. This is an evergreen with new growth in early spring followed by bright yellow flowers. Leaves elongated and prickly. Flowers are borne in long racemes over a long flowering period from April to early August. Height to 45cm.
A recently discovered species from Darrell Probst, who introduced it in 2010. Unusual in that the large glossy elongated leaves appear singly, rather in their normal triplet form. Flower spikes above the foliage with pale lemon flowers. Very rarely available, and difficult to cultivate for sale, given its preference to run free (but not invasively). [...]