Adenostemma lavenia var. parviflorum

小花下田菊

Adenostemma lavenia (L.) Kuntze var. parviflorum (Blume) Hochr.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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Hochr., Candollea 5: 298. 1934.

Kitamura, The Botanical magazine, Tokyo 55: 342. 1941. (Bot. Mag. Tokyo, 植物學雜誌)

Adenostemma parviflorum (Blume) DC.

Kitamura, Memoirs of the College of Science, Kyoto Imperial University. Series B. Biology 13: 298. 1937. (Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol.)

herb

Stems 40–60 cm tall, sparsely and minutely hirsute, often branching.
Lower leaves small, ovate, petiolate, obtuse; median cauline leaves ovate-oblong, 10–15×5–10 cm, apex often obtuse, base cuneate, petiole 1.5–4 cm long, margins crenate, nearly glabrous on both surfaces; upper leaves smaller and more scattered, those in inflorescence linear, 3–6 mm long.
Heads in lax corymbs, 5–15 mm broad; peduncle slender, 7–20 mm long, minutely and densely crisp puberulous; involucres hemispheric, 5×3 mm, bracts 2-seriate, equal, narrowly oblong, apex obtuse, base connate, reflexed; corolla tubular, 2–2.5 mm long, 4–5-fid; style arms 1–2 mm long, shortly exserted; anthers not appendiculate at both ends.
Achenes oblong, 2.5–3 mm long, obtuse, 3-angular, densely warty; pappus bristles 3–4.5 mm long.