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Pakistan | Family List | Amaranthaceae

Gomphrena Linn., Sp. Pl. ed. 1:224. 1753. Gen. ed. 5:105. 1754; Hook. f., Fl. Brit. Ind. 4: 372. 1885; Schinz in E. and P., Pflanzenfam. ed. 2, 16c; 77. 1934.

Gomphrena globosa

Credit: M.Y. Saleem

Annual or perennial herbs with entire, opposite leaves. Inflorescences terminal or axillary, capitate or spicate, solitary or glomerate, often subtended by a pair of sessile leaves, bracteate with the bracts persistent in fruit, the axis frequently thickened. Flowers hermaphrodite, each solitary in the axil of a bract, bibracteolate; bracteoles laterally compressed, carinate, often ±longitudinally winged or cristate along the dorsal surface of the midrib, deciduous with the fruit. Tepals 5, erect, free or almost so, ± lanate dorsally, at least the inner 2 usually indurate at the base in fruit. Stamens 5, monadelphous, the tube shortly 5-dentate with emarginate to very deeply bilobed teeth; alternat¬ing pseudostaminodes absent. Style short or long, stigmas 2, suberect or ± divergent to very short. Ovary with a single pendulous ovule. Fruit a thin-walled, irregularly rupturing utricle. Seed ovoid, compressed.

A rather large genus of about 90 species, centred on tropical America but also with several Australian representatives.

Type species: Gomphrena globosa L.

1 Bracteoles with the dorsal crest small, confined to about the upper third of the dorsal surface of the midrib   Gomphrena celosioides
+ Bracteoles with the dorsal crest large and conspicuous, extending form the apex almost to the extreme base of the midrib   (2)
2 (1) Teeth of the staminal tube deeply bilobed, the lobes blunt and not or scarcely projecting beyond the anthers which are set between them; leaves broadly lanceolate to broadly oblong   Gomphrena globosa
+ Teeth of the staminal tube deeply bilobed with the lobes long and acute, projecting considerably beyond the anthers and subequalling them in overall length; leaves narrowly oblanceolate to linear-oblong   Gomphrena haageana

Lower Taxa

Related Synonym(s):


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