Rubus mesogaeus

裡白懸鉤子

Rubus mesogaeus Focke

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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Focke, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 29: 399. 1900. (Bot. Jahrb. Syst.)

Lu, Ou & Lu, Illustrations of Trees of Taiwan 1: 184. 1997. (Ill. Tr. Taiwan, 台灣樹木解說)
Yeh-Ching Liu, Fu-Yuan Lu & Chern-Hsiung Ou, Trees of Taiwan revised . 1994. (Tr. Taiwan rev. ed., 台灣樹木誌第二版)

shrub

A scandent shrub; stems pubescent when young, soon glabrous, dark brown, with few prickles up to 4 mm long.
Leaves 3-foliolate; terminal leaflet ovate-rhomboid, 4–8 cm long, 3–5 cm wide; lateral leaflets obliquely ovate to subrhomboid; apex acute to short acuminate, the base cuneate to rounded, the margins serrate to biserrate, the midrib and veins impressed above, prominent below, upper surface hairy on midrib and nerves and often also in between, lower surface white-tomentose; petioles 2–6 cm long, pubescent; stipules linear to linear-lanceolate, 5–8 mm long, outside pubescent, inside glabrous.
Flowers 4–15, cymose, axillary or terminal; pedicels 6–10 mm long, pubescent; bracts linear; calyx-lobes lanceolate, 4–5 mm long, pubescent on both sides; petals white, obovate-spathulate, about 4 mm long, outside slightly hairy at base; ovary hairy, style up to 2 mm long, hairy at base.
Collective fruit globose, 5–8 mm across.