CITRINUS Wolley-Dod, 1914

Distribution : Southern Spain, Gibraltar.

Description (according to IHSP 2003) :

Basal leaves peltate, petiole long, cauline leaves and margins undescribed.

Inflorescences simple secund racemes to 50 cm, floriferous part to 20 cm, pedicels 2.5 - 3 mm.

Flowers horizontal or pendulous, sepals triangular, acute, to 2 mm, corolla tubular, constricted below the lobes, yellow, 9 - 12 mm, petals ovate-lanceolate, prominently veined.

A taxon of very uncertain status. It differs from both U. horizontalis and U. rupestris in being taller, in its secund racemes of longer bright yellow flowers, the corolla tube constricted below the longer broad lobes, and in its much shorter carpels. Possibly it represents merely a form of U. heylandianus.