Volume 8 > Part 2 > Year 2007 > Page 319 > Euphorbiaceae > Glochidion

8. Glochidion hirsutum (Roxb.) Voigtwfo-0000973276

Hort. Suburb. Calc.: 153. 1845; Müll.Arg., Linnaea 32: 61. 1863; Hook.f., Fl. Brit. Ind. 5: 311. 1887; Airy Shaw, Kew Bull. 26: 275. 1972; Welzen in Welzen et al., Thai Forest Bull., Bot. 28: 87. 2000.— Bradleia hirsuta Roxb., Fl. Ind. ed. 2, 3: 699. 1832.— Phyllanthus hirsutus (Roxb.) Müll.Arg., Flora 48: 371. 1865.

Accepted Name : Glochidion zeylanicum var. tomentosum (Dalzell) Trimen
Syst. Cat. Fl. Pl. Ceylon: 79. 1885.

Synonyms & Citations :

Description : Shrub to tree, up to 5 m high; flowering twigs 3–4 mm thick, mainly densely velutinous all over. Leaves: stipules long to linear triangular, 2.5–6 by 0.6–1.1 mm, caducous; petiole 1.6–5 mm long; blade (ovate to) elliptic, 3.6–17.3 by 2.2–9 cm, length/width ratio 1.6–2.1, coriaceous, base asymmetric, (emarginate to) very shortly attenuate, margin flat, apex acute, upper surface shiny glabrous to glabrescent, nerves (7–)9–12 per side, veins scalariformly reticulate. Inflorescences supra-axillary fascicles, usually on an up to 10 mm long peduncle, up to 10 or more flowers, both sexes often together. Flowers yellow; sepals 6, basally connate. Staminate flowers 4–5.3 mm in diam.; pedicel 7–11 mm long, subglabrous; sepals stiff, ovately elliptic, outer ones 3–3.5 by 2–2.3 mm; inner ones 2.8–3.3 by ca 1.2 mm; stamens 5 or 6, androecium 1.4–1.6 mm long; anthers 1–1.1 mm long, connective teeth ca 0.3 mm long. Pistillate flowers ca 3.5 mm in diam.; pedicel 5–10.2 mm long; sepals ovate, outer ones 2.4–3.3 by 2–2.7 mm; inner ones 1.7–3.1 by 1.5–2.5 mm; ovary 4-or 5-locular, 1.2–3 by 1.3–2 mm high; stigmas in a cone, ca 1 mm long, upper half with free, coarse teeth. Fruits round, apically and basally flattened, ca 1.1 by 0.6 mm, not lobed, pilose when young, glabrous when old, sutures indistinct; wall very thin; column not seen. Seeds not seen.

Thailand : NORTHERN: Mae Hong Son (Khun Yuam, Mae Sariang), Chiang Mai (Ban Watchan, Doi Inthanon, Doi Lom, Doi Suthep, Mon Nang Ket), Chiang Rai (Mae Suai), Lampang (Chae Son, Mae Li); NORTH-EASTERN: Phetchabun (Nam Nao), Loei (Phu Luang), Sakon Nakhon (Phu Phan).

Distribution : E Himalaya to Hainan, Hong Kong (type), and Taiwan.

Ecology : Locally common to sometimes forming thickets, in low-lying or swampy ground in deciduous forests, 480–1,150 m alt.

Vernacular : Phak khi mot (ผักขี้มด)(Phrae); khrai pa pin (ไคร้ป่าปิ้น)(Phitsanulok); tan khao (ตานเข้า)(Loei); chum set (ชุมเส็ด)(Trat).