Plantae > Tracheophyta > Magnoliopsida > Lamiales > Acanthaceae > Thunbergia > Thunbergia usambarica Thunbergia usambaricaSynonyms: Thunbergia alba; Thunbergia cordata (heterotypic); Thunbergia humbertii (heterotypic); Thunbergia swynnertonii
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