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Pakistan | Family List | Solanaceae

9. Datura L., Sp. Pl. 179. 1753. Gen. Pl. ed. 5.83. 1754; Boiss., Fl. Or. 4:292. 1879; Clarke in Hook. f., Fl. Brit. Ind. 4:242. 1883; Duthie, Fl. Upper Gang. Pl. 2:130. 1911; Pojarkova in Fl. URSS. 22:109. 1955; Avery et al in Blakeslee, The genus Datura. Chronica Botanica, 20:16-47. 1959; Schoenbeck-Temesy in Rech. f., Fl. Iran. 100: 45. 1972.


Annual herbs. Leaves entire to sinuate or toothed. Flowers axillary solitary, bisexual, erect, showy. Calyx tubular, persistent in fruit. Corolla tubular-infundibuliform, white or purple, the limb 5-12- lobed or-dentate, plaited. Stamens 5. alternating with the corolla lobes, attached near the base of the corolla tube. Upper part of the ovary 2-locular, lower 4-locular. Style slender, stigma bilobed. Fruit a spinose or tuberculate capsule dehiscing irregularly or by valves. Seeds many, compressed.

A genus of 10 species, distributed in Mexico, Australia, Pakistan and India. Represented in Pakistan by 4 species, of which none are native.

1 Shrubby, 3-4.5 m tall. Flowers 20-28 cm long. Cultivated   4 Datura suaveolens
+ Herbs (often suffruticose at the base) up to 2 m tall. Flowers 7-17 cm long. Widely naturalized   (2)
2 (1) Capsule erect, dehiscence 4-valved. Leaves sinuately dentate   1 Datura stramonium
+ Capsule nodding, dehiscence irregular. Leaves entire, repand to sinuate-wavy   (3)
3 (2) Plants subglabrous. Corolla 5-10-lobed, white or purple to yellow suffused. Calyx 1/2 corolla length or less. Capsule tuberculate or spinose with excrescences up to 3 mm long   3 Datura fastuosa
+ Plant parts dense pubescent-villous. Corolla 10(-12)- lobed, white. Calyx 1/2-2/3rd length of corolla. Capsule spiny, the spines 5-11 mm long   2 Datura innoxia

Lower Taxa

Related Synonym(s):


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