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Published In: Species Plantarum 1: 214. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: S.I. ALI
General/Distribution: A genus with c. 120 species, principally centred in North and South America; represented in Pakistan by the following species.

 

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Erect perennial or annual herbs. Leaves opposite or verticillate. Cymes umbellate. Flowers coloured. Calyx 5-lobed, usually with 5-10 glandular structures at the base of the sinuses. Corolla reflex-rotate, 5-lobed. Corona usually of 5 stipitate tubular segments (hoods) attached to the top of gynostegium stipe; from within each of the hoods a horn arises which arches over the gynostegium. Anthers terminated by an inflexed membrane; pollinia oblong, 2 per anther, pendulous in the anther thecae. Stigma flattened, 5-angled or lobed. Follicles acuminate. Seeds comose.
 
 
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