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3. Rodgersia A. Gray, Mem. Amer. Acad. Arts, n.s. 6: 389. 1858.

鬼灯檠属 gui deng qing shu

Pan Jintang ; James Cullen

Rodgersia pinnata

Credit: Harvard University Herbaria

Herbs perennial. Rhizomes usually transversely elongating, thick, scaly. Leaves long petiolate, palmately, pinnately, or subpinnately compound; leaflets 3-9(or 10), base subsessile, margin doubly serrate, apex usually shortly acuminate. Inflorescence a paniculate cyme, ebracteate, many flowered. Sepals (4 or)5(-7), spreading, white, pink, or red. Petals usually absent, very rarely 1, 2, or 5 vestigial ones present. Stamens 10(-14). Ovary subsuperior, rarely semi-inferior, 2- or 3-loculed; placentation axile; ovules many; styles 2 or 3. Capsule 2- or 3-valved.

Five species: E Asia, Himalayas: four species (two endemic) in China.

Rodgersia nepalensis T. A. Cope ex Cullen was recorded from Xizang by Pan (in C. Y. Wu, Fl. Xizang. 2: 517-518. 1985). This species might well occur in W Xizang, but no specimens from China have been seen by the present authors; further study is required.

1 Sepals pinniveined, veins not confluent at apex, or arcuate and pinnate veined, veins not or partly to completely confluent at apex; leaves palmately compound, with 3-7 leaflets.   (2)
+ Sepals arcuate veined, veins confluent at apex; leaves pinnately or subpinnately compound, with 3-9(or 10) leaflets.   (3)
2 (1) Leaflets 3(-5)-lobed at apex, glabrous adaxially; sepals 5-7, sparsely glandular hairy abaxially and at margin, glabrous adaxially, pinniveined, veins not confluent at apex, apex acuminate   1 R. podophylla
+ Leaflets not lobed at apex, sparsely subsessile glandular hairy adaxially; sepals (4 or)5(or 6), shortly glandular hairy and pilose abaxially and at margin, glabrous or sessile glandular hairy adaxially, arcuate and pinnate veined, veins not or partly to completely confluent at apex, apex shortly acuminate   2 R. aesculifolia
3 (1) Basal and proximal cauline leaves pinnate, usually with 3 terminal leaflets and 6 or 7 lateral, usually opposite, rarely alternate leaflets; sepals sparsely tawny paleaceous hairy abaxially, glabrous adaxially   3 R. sambucifolia
+ Basal and proximal cauline leaves subpinnate, usually with 6-9 leaflets, of which terminal ones 3-5, verticillate ones 3 or 4; sepals tawny pubescent and subsessile glandular hairy abaxially, sparsely subsessile glandular hairy adaxially only near base   4 R. pinnata

Lower Taxa


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