Key to the Andryala species in Madeira

1. Stem with some glandular hairs in the upper part; external involucral bracts flat, not embracing a floret; florets pale yellow, frequently with a reddish stripe on the outer face ......................................................................................................... A. integrifolia

- Stem glandular hairy at least in the upper part; external involucral bracts involute, embracing a floret; florets golden yellow, seldom with a reddish stripe on the outer face ................................................................................................................................... 2

2. Lower leaves entire to pinnatipartite with lobes more than 3 mm wide; peduncles frequently with long glandular hairs 0.9–4.0 mm long; ligules not stellate-hairy at the apex of their teeth or rarely so ................................................................................................. 3

- Lower leaves 1–2-pinnatisect with segments up to 3 mm wide; peduncles with short glandular hairs 0.4–0.9 mm long; ligules stellate-hairy at the apex of their teeth ........................................................................................................................ A. crithmifolia

3. Stem densely stellate-tomentose with glandular hairs all along the stem, especially in the upper half; lower leaves entire or subentire, sometimes lobate-pinnatifid, cauline leaves usually entire; uppermost, cauline, and sometimes basal leaves densely glandular hairy; peduncles stout; involucre hemispherical at anthesis; involucral bracts arranged in 4(–5) rows.............................. ....................................................................................................................................................................................... A. glandulosa

- Stem puberulous to tomentose with stellate hairs and abundant glandular hairs only in the upper part; basal and cauline leaves subentire to pinnatipartite; uppermost leaves ± glandular hairy; peduncles slender; involucre campanulate at anthesis; involucral bracts arranged in 2–3 rows......................................................................................................................................... A. subglabrata