All Floras      Advanced Search
Page 94 Login | eFloras Home | Help
Pakistan | Family List | Boraginaceae

17. Onosma L., Sp. Pl. ed. 2,1:196. 1762. Gen. Pl. ed. 6.76.1764; G. Popov in Schischkin, Fl. URSS. 19:184.1953; Riedl in Rech. f., Fl. Iran. 48:169.1967; Kazmi in J. Arn. Mb. 52:502.1971; Riedl in Davis, Fl. Turk. 6:326.1978.


Perennial or biennial suffruticose herbs with hispid parts. Hairs setose, usually arising from a tubercled base; the base sometimes setulose. Flowers bracteate, in terminal or both terminal and lateral cynics, nodding. Calyx 5-sect or sometimes shortly tubular, usually accrescent. Corolla tubular, gradually broadening upwards, yellow, blue, white or creamish; lobes short, patent or not. Annulus glabrous or hairy. Nectariferous glands sometimes present. Filaments adnate to corolla tube in lower half. Anthers usually adnate to one another basally or sometimes laterally, included in the corolla tube or sometimes exserted. Stigmas 2, bibbed or capitate. Nutlets 4 or less, usually mooth.

About 85 species, mainly in Iran and westward to Syria, Turkey and Europe. Also in Turkestan, Altai, Afghanistan, Tibet, Burma, China and India. Represented in Pakistan by 8 species.

1 Anthers free, united only at the base   (2)
+ Anthers united   (3)
2 (1) Corolla 25-30 (-35) mm long. Anthers 8-11 mm long. Nutlets c. 4.5 nun long   1 Onosma dichroantha
+ Corolla 7-18 mm long. Anthers 3-7 mm long. Nutlets c. 3-3.5 mm long   2 Onosma limitaneum
3 (1) Anthers ± included in corolla   (4)
+ Anthers exserted to more than half of corolla   (7)
4 (3) Filaments ± 2.5 mm long   3 Onosma chitralicum
+ Filaments 5-10 mm long   (5)
5 (4) Plants 10-70 cm or more tall. Basal leaves 9-35 cm long   4 Onosma hispida
+ Plants up to 30(-35) cm tall. Basal leaves up to 10 cm long   (6)
6 (5) Bracts attenuate in upper part and acuminate. Corolla 30 mm or more in length. Filaments 10-12 mm long   7 Onosma khyberianum
+ Bracts not as above. Corolla less than 30 mm long. Filaments up to 9 mm long   8 Onosma griffithii
7 (3) Cauline leaves 10-30 mm long; undersurface with both spreading and appressed hairs. Corolla tube antrorsely pubescent externally and internally villous towards the base   5 Onosma hypoleucum
+ Cauline leaves 50-80 mm long, undersurface with spreading hairs. Corolla tube retrorsely pubescent externally and internally glabrous   6 Onosma thomsonii

Lower Taxa

Related Synonym(s):


Related Objects  

Flora of China  
  • PDF File
  • PDF

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |