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FOC | Family List | FOC Vol. 10 | Fabaceae | Indigofera

18. Indigofera decora Lindley, J. Hort. Soc. London. 1: 68. 1846.

庭藤 ting teng

Shrubs, 0.4-2 m tall. Stems terete, striate, glabrous. Stipules caducous. Leaves 8-25 cm, 5-15(-23)-foliolate; peti­ole and rachis glabrous or with sparse appressed medifixed trichomes; petiole 1-2.5 cm; rachis adaxially grooved; stipels subulate, ca. 1.5 mm; petiolules ca. 2 mm; leaflet blades oppo­site or rarely alternate or only alternate on basal part of leaf, usually ovate-lanceolate, ovate-oblong, or lanceolate, 2-7.5(-10) × 1-3.5 cm, papery, abaxially with appressed white medifixed trichomes, adaxially glabrous or hairy, base cuneate to broadly cuneate, apex acuminate, acute, or rarely obtuse and mucronate. Racemes 13-21 cm; peduncle 2-4 cm; rachis stri­ate, glabrous; bracts linear-lanceolate, ca. 3 mm, caducous. Pedicel 3-6 mm, glabrous. Calyx cup-shaped, 2.5-3.5 mm, with appressed short trichomes or glabrous; tube 1.5-2 mm; teeth triangular, ca. 1 mm, most abaxial one as long as tube. Corolla light purple, pink, or rarely white; standard elliptic, 1.2-1.8 × ca. 0.7 cm, outside white strigillose-pubescent, sometimes with brown hairs; wings 1.2-1.4 cm, margin ciliate; keel as long as wings, spur ca. 1 mm. Stamens (1.1-)1.3-1.4 cm; an­thers ovoid, both ends hairy. Ovary glabrous, with more than 10 ovules. Legume brown, cylindric, 2.5-6.5(-8) cm, glabrous; en­docarp blotched. Seeds 7 or 8 per legume, ellipsoid, 4-4.5 mm. Fl. Apr-Jun, fr. Jun-Oct.

Near streams, valleys, woodlands, scrub, trailsides; 200-1800 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Zhejiang [Japan].

1 Leaves 13-23-foliolate   (2)
+ Leaves 5-13-foliolate   (3)
2 (1) Leaflet blades adaxially glabrous   18a var. decora
+ Leaflet blades with sparse appressed medifixed 2-branched trichomes on both surfaces.   18c var. cooperi
3 (1) Leaves 5-9-foliolate.   18b var. chalara
+ Leaves 9-13-foliolate.   18d var. ichangensis

Lower Taxa


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