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FOC | Family List | FOC Vol. 9 | Rosaceae | Spiraea

36. Spiraea cantoniensis Loureiro, Fl. Cochinch. 1: 322. 1790.

毛萼麻叶绣线菊 mao ye xiu xian ju

Shrubs to 1.5 m tall. Branchlets arching, dark red-brown, turning gray-brown when old, slender, terete, glabrous or pubescent; buds ovoid, small, with several scales, glabrous or puberulous apically or on scale margins. Petiole 4–7 mm, glabrous; leaf blade gray-blue abaxially, dark green adaxially, rhombic-lanceolate to rhombic-oblong, 2–8 × 0.7–2 cm, glabrous or abaxially pubescent, pinnately veined, base cuneate, margin incised serrate above middle, apex acute. Umbels pedunculate, 3–4 × 2–3.5 cm, many flowered; rachis and pedicels glabrous or pubescent; pedicels 8–14 mm; bracts linear to lanceolate, 2–3 mm, glabrous or pubescent. Flowers 5–7 mm in diam. Hypanthium campanulate, glabrous or abaxially pubescent. Sepals triangular or ovate-triangular, 1–1.5 × 1.5–2 mm, erect in fruit, apex acute or shortly acuminate. Petals white, suborbicular or obovate, 2.5–4 × 3–4.5 mm, apex emarginate or obtuse. Stamens 20–28, slightly shorter than to nearly equaling petals. Disk annular, lobed; lobes unequal, suborbicular, apex emarginate. Styles shorter than stamens. Follicles straightly spreading, glabrous; styles terminal, usually divergent. Fl. Apr–May, fr. Jul–Sep.

Slopes; 200--300 m. Native at least in N Jiangxi; widely cultivated elsewhere in China [Japan].


1 Branchlets pubescent; leaf blades 2–8 × 0.7–1.5 cm, abaxially pubescent.   36c var. jiangxiensis
+ Branchlets glabrous; leaf blades 3–5 × 1.5–2 cm, glabrous.   (2)
       
2 (1) Inflorescences and hypanthium glabrous.   36a var. cantoniensis
+ Inflorescences and hypanthium abaxially pubescent.   36b var. pilosa

Lower Taxa


 

Related Objects  
  • Flora of China Illustrations vol. 9, fig. 30, 16-17
  • Illustration

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