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Image of Psephellus vanensis A. Duran, Behçet & B. Dogan
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Psephellus vanensis A. Duran, Behçet & B. Dogan

Description

provided by Phytokeys
Perennial herb with a woody rootstock. Stem erect, striate, densely tomentose, 13–20 cm tall, 1.3–2 mm in diameter at base, simple, upper parts of stems leafless. Leaves concoloured, green, densely tomentose; basal leaves usually undivided and elliptic to lanceolate, 3–7 × 0.6–1.2 cm (including petiole), rarely lyrate with 2–3 pairs of lateral segments; cauline and upper cauline leaves undivided and lanceolate, partly decreasing in size towards capitula, 1–2.5 × 0.2–0.9 cm. Capitula solitary, 18–28 × 11–15 mm (including flowers). Involucre 11–16 × 11–14 mm, bowl-shaped. Phyllaries nearly imbricate, glabrous; appendages conspicuous, large, concealing most of the basal part of phyllaries, scarious, pale-brownish, with distinct cilia, cilia 1–2 mm long, 8–10 cilia on each side. Corolla pink-violet. Marginal florets slightly longer than central florets, radiant, 12–13 mm long, without staminode, with 5 narrowly linear-lanceolate lobes 3–4 mm long; central flowers radiant, 10–11 mm long, without staminode, with 5 lobes 2–3 mm long. Achenes 4–5 mm, straw-colored to brownish, smooth, glabrous; pappus 5–6 mm, inner row of scales 1–2 mm, scabrous. Flowers in June-July and fruits in July–August.
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cc-by-3.0
copyright
Bekir Dogan, Lütfi Behçet, Ahmet Duran, Davut Avlamaz
bibliographic citation
Dogan B, Behçet L, Duran A, Avlamaz D (2015) Psephellus vanensis (Asteraceae), a new species from east Turkey PhytoKeys (48): 11–19
author
Bekir Dogan
author
Lütfi Behçet
author
Ahmet Duran
author
Davut Avlamaz
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