Rorippa dubia

小葶藶

naturalized

Rorippa dubia (Pers.) Hara

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Hara, Journal of Japanese Botany 30: 196. 1955. (J. Jpn. Bot.)

同發表文獻

Nasturtium montanum Wall.

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 23: 40. 1886. (J. Linn. Soc., Bot.)
Nasturtium sublyratum (Miq.) Franch. & Sav.

Nakai, The Botanical magazine, Tokyo 34: 43. 1920. (Bot. Mag. Tokyo)
Rorippa sublyrata (Miq.) Hara

Hara, Journal of Japanese Botany 11: 623. 1935. (J. Jpn. Bot.)
Rorippa sinapis Ohwi & Hara

Ohwi & Hara, Journal of Japanese Botany 12: 899. fig. C. 1936. (J. Jpn. Bot.)

herb

Annual herb; stems erect or nearly so, 12–16 cm long, simple,green, sometimes tinged with purple.
Radical leaves obovate to oblanceolate, 8–10 cm long, 2.5–3.5 cm wide, obtuse or acute at apex, narrowed at base, 1–3 pinnately lobed, lobes irregular, petioles slender, 1.2–2.5 cm long, somewhat winged; cauline leaves small and unlobed or less lobed.
Inflorescences terminal or axillary racemes, few-flowered, 4–6 cm long; pedicels short or flowers subsessile; sepals 4, oblong, 3–3.5 mm long, 1.2–1.6 mm wide, acute at apex, green, tinged with purple; petals absent; stamens indi-stinctly tetradynamous, filaments short, 2–2.5 mm long, anthers 0.7 mm long; ovary 1–1.2 mm long, somewhat pubescent, style short, stigma rounded.
Siliques narrowly cylindrical, 2–3 cm long, 1–1.2 mm across. Seeds many, rounded, 0.6 mm across, brown when mature.