Nelsonia canescens (Nelsonia canescens)
Description
Herbs 10-20 cm tall, annual or perennial, creeping, sprawling, prostrate, or decumbent. Stems villous, often rooting at nodes. Petioles 0.2-3 (-4) cm, villous; leaf blade elliptic to ovate, 1-2 - 0.4-1.2 cm but basal ones sometimes 6-12 - 3.5-5 cm, both surfaces villous, base cuneate, margin entire, apex acute. Spikes 1.5-4 cm long; bracts elliptic, overlapping, 6-7.5 - 3-4 mm, 5-7 veined. Calyx abaxial lobe approximately 2 - 0.6 mm, apex 2-lobed; adaxial lobe approximately 3 - 1 mm; lateral lobes approximately 2 - 0.5 mm. Corolla bluish purple or white, externally glabrous; tube cylindric for approximately 1.5 mm, contracted near midpoint then expanded into throat; lower lip approximately 2.3 mm; upper lip approximately 2 mm. Stamens inserted at base of throat; filaments 0.5 mm, glabrous. Ovary glabrous with 4-8 ovules per locule. Fruit a capsule of approximately 5 - 2 mm, 8 to 16 seeds. Seeds broadly ellipsoid and granulate (Flora of China Editorial Committee, 2014). Nelsonia canescens is a herbaceous plant species in the family Acanthaceae, with a substantial number of similar plant specimens now identified as synonyms.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Lamiales
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Family: Acanthaceae
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Genus: Nelsonia
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