Ipomoea piurensis
| Ipomoea piurensis | ||||||||||||
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| Scientific name | ||||||||||||
| Ipomoea piurensis | ||||||||||||
| O'Donell |
Ipomoea piurensis is a plant type from the genus of Morningglory ( Ipomoea ) from the family of wind plants (Convolvulaceae). The species is common in South America and Africa. Bach R. Govaerts she must be named Ipomoea acanthocarpa (Choisy) Asch. & Schweinf. wear.
description
Ipomoea piurensis is an annual plant with few branches , the main stem axis of which initially grows upright, later prostrate or twining . The branches are 1 to 3 mm in diameter and are hairless or occasionally hairy at the nodes . The internodes have a length of 1.5 to 10 cm. The root grows vertically downwards. The leaf stalks have a length of 1 to 9 cm, the leaf blade is 3 to 7 cm long and 2 to 6 cm wide, egg-shaped and occasionally each side has one to three teeth on each side. To the front they are pointed to pointed, only rarely blunted and spiky. The underside can be slightly hairy near the heart-shaped base.
The inflorescences are non- branching cymes of two or three flowers , rarely a single flower. The inflorescence stalks are strong and 1 to 6 cm long and only indistinctly or not at all hairy. Bracts and bracts are ovate, blunt to pointed, prickly and 2 to 3 mm or 1 to 2 mm long. The flower stalks are strong, 3 to 6 mm long. The sepals are 5 to 9 mm long and 3.5 to 6 mm wide, hairless, prickly, blunt and elliptical, the inner ones can also be almost egg-shaped. The crown is 20 to 22 mm long, hairless and mostly colored white, rarely the inside is colored purple. The stamens come in two lengths and are 14 to 15 mm and 12 to 13 mm long. The anthers are 2 mm long. The ovary is ovoid, hairless and carries a 11 mm long stylus , which in turn spherical scar bears.
The fruits are 9 to 10 mm diameter capsules with a 2 to 3 mm long tip. They are two-chambered, but the upper part is divided into four chambers. The fruits are accompanied by bent back and conspicuously wrinkled sepals and contain gray, 6 to 7 mm long and woolly hairy seeds .
distribution
The species occurs from Costa Rica to tropical South America and from Cape Verde to Ethiopia.
literature
- J. Francis Macbride: Convolvulaceae In: Flora of Peru , Fieldiana: Botany, Volume XIII, Part V, No. 1, Dec. 1959.
Individual evidence
- ↑ Rafaël Govaerts (Ed.): Ipomoea - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on November 26, 2017.