F. pyrenaica is a perennial with alternate lance-shaped, glaucous, gray-green leaves. Each stalk bears singular, rarely paired, broadly, bell-shaped, 1 1/2 inches, deep brownish-purple, occasio...

F. raddeana is a robust perennial with whorled or alternate, lance-shaped leaves, with a lustrous, pale green color. Each stalk may bear umbels of 5 or 6, occasionally to 20, broadly, bell-shap...

F. recurva is a perennial with whorls of linear lance-shaped, gray-green, often glaucous leaves. The flowers are borne on spike-like stems that have 3 to 12, narrow, bell-shaped, pendant, brigh...

F. pontica is a perennial with opposite or subopposite, lance-shaped to ovate lance-shaped, glaucous, gray-green leaves. The highest leaves are in a whorl of 3 above the flowers. Each stalk bea...

F. pudica is a perennial with alternate upper, narrow lance-shaped, slightly glaucous, mid-green leaves, lower leaves being opposite. The flowers are borne on stalks. Each stalk bears flowers t...

F. pallidiflora is a robust perennial with opposite or alternate, broadly lance-shaped leaves, with a glaucous, gray-green color. The flowers are borne on stalks and have a slightly unpleasant ...

‘Adiyaman’ is a robust perennial with sturdy, upright stems bearing alternate, lance-shaped leaves, with a glaucous, gray-green color. This cultivar is taller, up to 5 inches in hei...

F. persica is a robust perennial with sturdy, upright stems bearing alternate, lance-shaped leaves, with a glaucous, gray-green color. The flowers are borne along stalks. Each may have up to 30...

F. nigra of gardens is a perennial with alternate lance-shaped, glaucous, gray-green leaves. Each stalk bears singular, rarely paired, broadly, bell-shaped, 1 1/2 inches, deep brownish-purple, ...

F. oranensis is a perennial with opposite linear, mid-green leaves. The flowers are borne on stalks. Each stalk bears 1 to 3, broadly, bell-shaped, pendant, 1 1/2 inches long, green flowers, ch...