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Launaea Cass.

Genus composed of about 60 species from the Old World, of which 16 are found in North Africa, distributed throughout the area. They are mostly annual or perennial herbaceous plants. Only L. arborescens can be considered shrubby with a height exceeding 1 m. There are two other woody species (at least at the base), thorny and intricately branched, typical of arid or desert areas of the region. They are subshrubs that usually do not exceed 50 cm in height.

Launaea lanifera Pau (L. acanthoclada Maire) is a subshrub up to 45(50) cm in height, which is very similar to L. arborescens, but has a basal rosette of well developed leaves, with bracteiform cauline leaves, both with lanuginous axils. Endemic to the Iberian-Maghrebi area, it is found in sunny thickets in arid areas through almost all Morocco and in the N of Algeria and Tunisia.

Launaea spinosa (Forssk.) Kuntze [Ara. (Egypt): Kabath] is a subshrub 30-50 cm in height, with scarce, linear cauline leaves, with some triangular lobes, glaucous and glabrous; capitula small and sessile, with 6-10 yellow ligulate flowers. Found on desert stony areas of the Near East; in North Africa it is found in the E of Egypt, including the Sinai Peninsula.

Key to species

1 Subshrub, lanuginous at the base and axils of leaves. Cauline leaves bracteiform Launaea lanifera

1 Shrubs or subshrubs, glabrous. Cauline leaves well developed, linear or linear-oblong 2

2 Shrub 40-150 cm. Capitula with involucre 9-15 mm long, narrowly ovoid, with 10-15(20) flowers Launaea arborescens

2 Subshrub 30-50 cm in height. Capitula with involucre c. 8 mm long, cylindrical, with 6-10 flowers Launaea spinosa

Updated by: B. Valdés.

Launaea lanifera. 1. Enrique Triano
Launaea lanifera. General aspect in bloom. Enrique Triano.
Launaea lanifera. 2. Fouad Msanda. Teline
Launaea lanifera. General aspect with leaves and inflorescences. Fouad Msanda. Teline.
Launaea lanifera 2b. Claude Lemmel & Zahora Attioui
Launaea lanifera. Basal leaves. Claude Lemmel & Zahora Attioui.
Launaea lanifera 2c. Claude Lemmel & Zahora Attioui
Launaea lanifera. Basal leaves. Claude Lemmel & Zahora Attioui.
Launaea lanifera. 3. Fouad Msanda. Teline
Launaea lanifera. Twigs with leaves and inflorescences. Fouad Msanda. Teline.
Launaea lanifera. 4. Enrique Triano
Launaea lanifera. Inflorescences detail. Enrique Triano.
Launaea lanifera. 6. Fouad Msanda. Teline
Launaea lanifera. Detail of infruitescence. Fouad Msanda. Teline.
Launaea spinosa 1. Ori Fragman-Sapir
Launaea spinosa. General aspect. Ori Fragman-Sapir. flora.org.il/en
Launaea spinosa 1b. Ori Fragman-Sapir. flora.org.il.en
Launaea spinosa. Detail of leaf. Ori Fragman-Sapir. flora.org.il/en
Launaea spinosa 2. Ori Fragman-Sapir
Launaea spinosa. Flower in lateral view. Ori Fragman-Sapir. flora.org.il/en
Launaea spinosa 3. Ori Fragman-Sapir
Launaea spinosa. Flower in frontal view. Ori Fragman-Sapir. flora.org.il/en
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