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Pakistan | Family List | Boraginaceae

16. Trichodesma R. Br., Prodr. Fl. Nov. Holl. 496. 1810. nom. cons.: C.B. Clarke in Hook. f., Fl. Brit. Ind. 4:153.1883; Riedl in Rech. f., Fl. Iran. 48:219.1967; Kazmi in J. Arn. Arb. 52:515.1971.


Perennial herbs with hispid parts. Leaves both opposite and alternate. Flowers solitary or in terminal short racemes. Calyx 5-fid or partite, accrescent in fruit. Corolla hypocrateriform, rotate to funnelform. Throat scales absent. Stamens 5; anthers prominent, connivent into a cone, apex acuminate. Ovary not deeply 4-lobed. Style slender, stigma obscure. Nutlets smooth to hirsute or rugose.

Species 40-45, tropical and subtropical Africa, Asia and Australia. Represented in Pakistan by 4 species.

1 Leaves with long stiff hairs only   3 Trichodesma africanum
+ Leaves with both long stiff and soft short hairs   (2)
2 (1) Nutlets distinctly margined   4 Trichodesma stocksii
+ Nutlets barely margined   (3)
3 (2) Nutlets t 4.5 mm long, glabrous. Calyx base saggitate at anthesis, gradually narrowing up wards   1 Trichodesma indicum
+ Nutlets 5-6 mm long, minutely tuberculate. Calyx base truncate, abruptly narrowing up wards   2 Trichodesma incanum

Lower Taxa

Related Synonym(s):


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