Ipomoea jujuyensis
| Ipomoea jujuyensis | ||||||||||||
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| Ipomoea jujuyensis | ||||||||||||
| O'Donell |
Ipomoea jujuyensis is a plant from the genus of Morningglory ( Ipomoea ) from the family of wind plants (Convolvulaceae). The species is common in South America.
description
Ipomoea jujuyensis is a twining, occasionally prostrate, perennial plant , the branches of which can reach a thickness of 2 to 5 mm. Like the petioles, the stems are sparsely hairy with simple, whitish, backward-facing trichomes 0.3 to 0.7 mm long . The leaf stalks reach a length of 2 to 10 cm, the leaf blades are egg-shaped, entire or three-lobed, relatively narrow and strongly heart-shaped, the ears are rounded. To the front, the leaves are pointed, tapering or tail and prickly. They become 4.5 to 15 cm long and 3 to 11 cm wide. The upper side is hairy evenly sparse and adjoining forward, the underside is hairy mainly on the leaf veins. The hair is lost on older leaves. The roots form bulbous swellings.
The inflorescence stalks of the (rarely only one) two to five flowered zymous inflorescences are 5 to 16 cm long. The bracts and bracts are sloping, both ovate-lanceolate in shape, the former are 3 to 3.5 mm long, the latter 2 mm. The minor axes of the inflorescence axis are 3 to 10 mm long, the flower stalks are 1 to 2.5 cm long, strong, bristly hairy and thickened and bent back after the flowering period. The buds are egg-shaped and pointed towards the front. The sepals have scales and are usually cupped with small prickly tips. The outer sepals are elliptical in shape, finely hairy or hairless on the outside, 6 to 8 mm long and 5 to 6 mm wide. The inner sepals are hairless, almost circular, concave and 7 to 8 mm long and 8.5 to 9.5 mm wide. The crown is hairless, funnel-shaped, 5.5 to 7.5 cm long. It is colored blue, the inside of the corolla tube is pink. The stamens come in two sizes, the sizes are between 4.5 and 5.5 cm and 4 and 5 cm. The stamens are slender and hairy at the base with long, upwardly directed trichomes, the anthers are arrow-shaped. The pollen grains are spherical and prickly. The scar is two-spherical.
distribution
The species is widespread in Ecuador , northern Argentina and probably also in Peru and Bolivia , where it grows at very high altitudes.
literature
- J. Francis Macbride: Convolvulaceae In: Flora of Peru , Fieldiana: Botany, Vol. XIII, Part V, No. 1, Dec. 1959.