Ipomoea asarifolia (Desr.) Roem. & Schult., Syst. Veg.

A. P. S, Lima, M. T. A., Buril & Melo, J. I. M. de, 2024, Synopsis of Ipomoea (Convolvulaceae) in the state of Paraíba, Brazilian Northeastern, Rheedea 34 (5), pp. 430-456 : 440

4. Ipomoea asarifolia (Desr.) Roem. & Schult., Syst. Veg. , ed. 15 bis, 4: 251. 1819. Fig. 3c

Flowering & fruiting: Flowering throughout the year; fruiting from April to October.

Distribution: Widely distributed in West Africa, the Americas and Asia. It often grows in disturbed and humid areas ( Wood et al., 2020). In Brazil, it occurs throughout the North and Northeast, including on the Oceanic Island Fernando de Noronha, in the Central-West only in Mato Grosso, and in the Southeast only in Rio de Janeiro, in areas of the Amazon, Caatinga and Atlantic Forest ( Simão-Bianchini et al., 2024). In the study area, it is one of the most frequent species, occurring in all IRs, in urban and ruderal environments, roadsides and close to water reservoirs (except in saline environments) in areas of Caatinga and Atlantic Forest.

Specimens examined: BRAZIL, Cajazeiras, AÇude nos arredores da cidade, Sítio Baixio dos Henriques,

01.11.2018, fl., V. M. Cotarelli 2886 ( HUEFS, digital image!). Passagem, Fazenda ABA , 17.04.2016, fl.

& fr., E.M.P. Fernando 443 (CSTR!). Pirpirituba,

09.09.2016, fl. & fr., A . P. S . Lima 02 ( HACAM!) .

Serra Branca, arredores da Serra do Jatobá,

03.05.2022, A. P. S . Lima 33 ( HACAM!) .

Notes: Due to the stoloniferous herb habit with prostrate branches, reniform leaf blade, pink funnelform and included stamens, we found it misidentified as I. pes-caprae , which is a species exclusive from saline conditions. However, I. asarifolia has a leaf blade with a rounded or acute apex and a cordate base, and sepals unequal, the outers half the size of the inner ones (vs. leaf blade with apex emarginate and base truncated or rounded, sepals subequal, the outer slightly smaller than the inner ones).

Figures

Fig. 3. a. Ipomoea acanthocarpa (Choisy) Hochst. ex Schweinf. & Asch., Inflorescence–side view. b. I. alba L., Inflorescence–side view. c. I. asarifolia (Desr.) Roem. & Schult., Habit. d. I. bahiensis Willd. ex Roemer & Schultes, Inflorescence–lateral view emphasizing the calyx with subapical rostrum.e. I. batatas (L.) Lamarck,Flower–side view.f. I. blanchetti Choisy, Habit emphasizing the three-lobed leaf.g. I. brasiliana (Mart. ex Choisy) Meisner var.subincana (Choisy) J.R.I. Wood & Scotland, reproductive branch. h. I. carnea Jacq. subsp. fistulosa (Mart. ex Choisy) D.F. Austin, Habit. i. I. decipiens Dammer, Inflorescence. j–k. I. imperati (Vahl) Grisebach: j. Habit; k. Flower– top view (Photos a. B.F. Rocha; b-c, e. A.P.S. Lima; d. C.C. Correia;f. M.G.M. Gonçalves; g. E.M. Rodrigues; h. K.A. GorgÔnio;i-k. I.C.M. Albuquerque).