Pachystachys
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Authority
Leonard, Emery C. 1953. The Acanthaceae of Colombia, II. Contr. U. S. Natl. Herb. 31: i-viii, 119-322.
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Family
Acanthaceae
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Scientific Name
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Description
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Description - Herbaceous or suffrutescent plants; leaves large, petioled; spikes terminal, dense; bracts conspicuous, herbaceous; bractlets small or none; flowers borne in a terminal spike of verticillasters consisting of 3 or 1 flowers each; calyx 5-parted, the segments relatively short; corolla ringent, slenderly obconic, curved, 2-lipped, the upper lip narrow, 2-lobed at tip, the lower lip 3-lobed, the lobes subequal, oblong or ovate; stamens 2, about as long as the corolla, attached near the base of its tube ; anthers deeply sagittate, the basal lobes muticous, equal; staminodes, if present, rudimentary.