Morning Glories of MonteverdeKey to the Species of Ipomoea (Convolvulaceae) |
The genus Ipomoea is represented by about 50 species in Costa Rica, with 15 recorded in the Monteverde region. All but the cultivated I. indica grow naturally on the Pacific slope, and at least two species (I. batatas and I. batatoides) also occur on the Atlantic slope. Operculina pteripes, with flowers similar to Ipomoea, is also included in the key. Most of these species can be seen along the roads between the Inter-American Highway and Monteverde, where they are especially noticeable during the peak flowering season from November to January. Most Morning Glories are climbers without stipules or tendrils and with alternate simple leaves. The leaves are often lobed, and the amount of lobing can be highly variable even on the same plant. Many species produce copious white latex when cut; a few have clear sap. Most of the above ground growth tends to be herbaceous and annual, so that plants reach their full growth at the end of the growing season- hence the concentration of flowering from November to January- at the end of the rainy season. A few species have semi-woody, perennial stems, and are deciduous (e.g., I. aurantiaca, I. leucotricha). |
1e. Corolla scarlet, 2 cm across when open, Pacific slope below 500 m ... I. hederifolia 1f. Corolla salmon, Pacific lowlands up to 500 m ... Operculina pteripes
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