| 1 | Native | Africa | East Tropical Africa | Tanzania | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | East Tropical Africa | Uganda | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | Northeast Tropical Africa | Chad | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | Northeast Tropical Africa | Eritrea | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | Northeast Tropical Africa | Ethiopia | | | Hedberg, I. & S. Edwards. 1989-. Flora of Ethiopia Note: Eritrea added in 2000 |
| 1 | Native | Africa | Northeast Tropical Africa | Sudan | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | South Tropical Africa | Angola | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | South Tropical Africa | Malawi | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | South Tropical Africa | Mozambique | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | South Tropical Africa | Zambia | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | South Tropical Africa | Zimbabwe | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | Southern Africa | Botswana | | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 1 | Native | Africa | Southern Africa | Namibia | | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 1 | Native | Africa | Southern Africa | South Africa | Cape Province | | Arnold, T. H. & B. C. De Wet, eds. 1993. Plants of southern Africa: names and distribution. Mem. Bot. Surv. S. Africa no. 62 |
| 1 | Native | Africa | Southern Africa | South Africa | KwaZulu-Natal | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 1 | Native | Africa | Southern Africa | South Africa | Limpopo | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 1 | Native | Africa | Southern Africa | South Africa | Mpumalanga | | Germishuizen, G. & N. L. Meyer, eds. 2003. Plants of southern Africa: an annotated checklist. Strelitzia 14 National Botanical Institute, Pretoria, South Africa. |
| 1 | Native | Africa | Southern Africa | South Africa | Transvaal | | Arnold, T. H. & B. C. De Wet, eds. 1993. Plants of southern Africa: names and distribution. Mem. Bot. Surv. S. Africa no. 62 |
| 1 | Native | Africa | West Tropical Africa | Benin | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Côte D'Ivoire | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West Tropical Africa | Ghana | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Guinea | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Guinea-Bissau | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Mali | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Mauritania | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Nigeria | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Senegal | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West Tropical Africa | Togo | | | Keay, R. W. J. & F. N. Hepper. 1953-1972. Flora of west tropical Africa, ed. 2. |
| 1 | Native | Africa | West-Central Tropical Africa | Burundi | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Cameroon | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Central African Republic | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Congo | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Democratic Republic of the Congo | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Equatorial Guinea | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Gabon | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | West-Central Tropical Africa | Rwanda | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Africa | Western Indian Ocean | Madagascar | | | PROTABASE, the information base of PROTA (Plant Resources of Tropical Africa) (on-line resource). |
| 1 | Native | Asia-Temperate | Arabian Peninsula | Yemen | | | Wood, J. R. I. 1997. A handbook of the Yemen flora. |
| 1 | Native | Asia-Temperate | China | China | Fujian Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Guangxi Zhuangzu Zizhiqu | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Yunnan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | China | China | Zhejiang Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Temperate | Eastern Asia | Japan | Ryukyu Islands | | Iwatsuki, K. et al. 1993-. Flora of Japan. |
| 1 | Native | Asia-Temperate | Eastern Asia | Taiwan | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Andhra Pradesh | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Assam | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Bihar | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Goa | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Gujarat | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Karnataka | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Kerala | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Madhya Pradesh | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Maharashtra | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Odisha | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Rajasthan | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Tamil Nadu | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | Uttar Pradesh | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | India | West Bengal | | Jagtap. A. P. & N. P. Singh. 1999. Asclepiadaceae. In: Botanical Survey of India, Fascicles of flora of India. 24:89-91. |
| 1 | Native | Asia-Tropical | Indian Subcontinent | Sri Lanka | | | Dassanayake, M. D. & F. R. Fosberg, eds. 1980-. A revised handbook to the flora of Ceylon. |
| 1 | Native | Asia-Tropical | Indo-China | Thailand | | | |
| 1 | Native | Asia-Tropical | Indo-China | Vietnam | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Malesia | Indonesia | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 1 | Native | Asia-Tropical | Malesia | Malaysia | | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 2 | Cultivated | Asia-Tropical | Indian Subcontinent | India | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |