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FOC | Family List | FOC Vol. 10 | Fabaceae

131. Campylotropis Bunge, Pl. Mongholico-Chin. 6. 1835.

杭子梢属 hang zi shao shu

Authors: Puhua Huang, Hiroyoshi Ohashi & Yu Iokawa

Oxyramphis Wallich ex Meisner; Phlebosprium Junghuhn.

Shrubs or shrublets. Leaves pinnately 3-foliolate; stipules narrowly triangular or rarely triangular to deltoid-ovate, persistent; stipels nearly always absent, or rarely always present, linear; leaflets entire. Inflorescences axillary, racemose, rarely umbellate or spicate, sometimes terminal panicle composed of several upper racemes with reduced subtending leaves, 1-flowered per bract; bracts persistent or caducous. Pedicels articulate; bracteoles 2, usually caducous before anthesis. Calyx campanulate, 4-lobed; lower lobe narrower and longer than upper and lateral ones, upper lobe minutely 2-toothed at apex. Corolla violet to pinkish white or rarely yellow; standard shortly clawed at base; wings auriculate and clawed at base; keel incurved at ca. right angle, acute at apex, auricu­late, clawed at base. Stamens monadelphous; vexillary stamen connate to staminal tube for 2/3-4/5 of its length, rarely almost diadel­phous. Pistil minutely stipitate; ovary 1-ovuled, superior; style filiform, incurved; stigma terminal, small, ciliate with minute hairs. Legumes compressed, lenticular, indehiscent, 1-seeded. Seeds reniform, rim-arillate with ringlike margin around hilum.

About 37 species: mostly in temperate zone of Asia; 32 species (20 endemic) in China.

Because most species tolerate arid soils, they are important for soil conservation. The branchlets can be used as knitting needles. The young shoots and leaves are used as forage for livestock and as green manure. The roots and leaves of some species are used medicinally.

1 Leaves dimorphic, lower leaves petiolate with obovate leaflets and distinct rachis, upper leaves sometimes subsessile   (2)
+ Leaves not dimorphic   (3)
2 (1) Upper leaflets deltoid.   10 C. diversifolia
+ Upper leaflets elliptic, orbicular, or transversely elliptic.   13 C. harmsii
3 (1) Leaflets consistently stipellate   (4)
+ Leaflets estipellate, rarely including a few leaves with rudimentary stipels   (5)
4 (3) Glandular hairs present on pedicel, calyx, and inflorescence rachis.   22 C. polyantha
+ Glandular hairs absent.   32 C. yunnanensis
5 (3) Glandular hairs present on pedicel, calyx, and inflorescence rachis   (6)
+ Glandular hairs absent from pedicel and calyx   (19)
6 (5) Calyx lobes more than 2 × as long as tube, more than 3 mm   (7)
+ Calyx lobes usually as long as tube or, if longer, less than 2 × as long as tube   (8)
7 (6) Bracts narrowly ovate, usually shorter than 3 mm; leaflet adaxially glabrous.   9 C. delavayi
+ Bracts linear, usually more than 3.5 mm; leaflet adaxially densely puberulent.   21 C. pinetorum
8 (6) Leaflet adaxially ± densely puberulent with spreading, very short hairs, rarely glabrescent; branches velutinous   (9)
+ Leaflet adaxially glabrous or ± densely pubescent; branches not velutinous   (11)
9 (8) Leaves and stems with white hairs; leaflets broadly elliptic to ovate, often more than 8 cm.   17 C. latifolia
+ Leaves and stems with tawny to pale brown hairs; leaflets narrowly ovate to elliptic, usually less than 7 cm   (10)
10 (9) Racemes extended, often more than 10 cm; bracts narrowly ovate, 2-2.5 mm; bracteoles ca. 1 mm.   11 C. fulva
+ Racemes usually less than 9 cm; bracts narrowly ovate, 3-5 mm; bracteoles ca. 2 mm.   25 C. sulcata
11 (8) Flowers small; standard usually less than 9 mm   (12)
+ Flowers larger; standard usually more than 10 mm   (14)
12 (11) Legumes more than 10 mm; leaflet abaxially densely white pubescent.   18 C. luhitensis
+ Legumes less than 8 mm   (13)
13 (12) Leaflet abaxially with sparse appressed short hairs; legume apex obtuse.   7 C. cytisoides
+ Leaflet abaxially with dense white silky hairs; legume apex rounded.   28 C. thomsonii
14 (11) Leaflets usually less than 1 cm, obdeltoid.   31 C. wilsonii
+ Leaflets usually more than 2 cm, not obdeltoid   (15)
15 (14) Bracts usually caducous before flowering.   19 C. macrocarpa
+ Bracts mostly persistent until fruiting   (16)
16 (15) Inflorescence usually a panicle; bracts mostly more than 2 mm; petioles not abaxially angled   (17)
+ Inflorescence not a panicle; bracts mostly less than 2 mm   (18)
17 (16) Leaflets deltoid to ovate, lateral veins thick, prominent abaxially.   15 C. hirtella
+ Leaflets obovate to oblong, lateral veins not prominent.   2 C. alopochroa
18 (16) Petioles sulcate, neither abaxially angled nor winged.   8 C. decora
+ Petioles abaxially angled, often slightly convex above, bisulcate and narrowly winged along both sides.   14 C. henryi
19 (5) Petioles abaxially angled, often narrowly winged along both sides; young branches distinctly angled   (20)
+ Petioles neither abaxially angled nor winged   (21)
20 (19) Young branches quadrangular; corolla purple.   12 C. grandifolia
+ Young branches triquetrous; corolla yellow or purple.   29 C. trigonoclada
21 (19) Calyx lobes ca. 3 × as long as tube; flowers subsessile, clustered at top of peduncle as an umbel; leaflet adaxially white pubescent.   1 C. alba
+ Calyx lobes usually nearly equal to tube or, if longer, less than 2 × as long as tube; inflorescences not umbelliform   (22)
22 (21) Leaflet adaxially densely puberulent   (23)
+ Leaflet adaxially glabrous, sparsely pubescent, or sericeous   (24)
23 (22) Calyx, inflorescence, young branches, and leaflets abaxially densely appressed sericeous; leaflets elliptic to oblong.   3 C. argentea
+ Calyx, inflorescence, young branches, and leaflets abaxially densely white villous; leaflets obdeltoid to broadly obovate.   5 C. brevifolia
24 (22) Pedicels usually less than 5 mm   (25)
+ Pedicels usually more than 5 mm   (28)
25 (24) Flowers clustered at upper part of racemes   (26)
+ Flowers distributed equally in racemes   (27)
26 (25) Flowers larger; standard ca. 10 mm; pedicels more than 1.5 mm; racemes not terete.   16 C. howellii
+ Flowers small; standard ca. 7 mm; pedicels less than 1.5 mm; racemes terete, very densely flowered, spikelike.   27 C. teretiracemosa
27 (25) Legumes ovoid to elliptic, pubescent; inflorescences racemose.   24 C. speciosa
+ Legumes narrowly ovoid to narrowly elliptic, lateral surface glabrous; inflorescences paniculate.   30 C. wenshanica
28 (24) Flowers less than 8 per raceme   (29)
+ Flowers 10 or more per raceme   (30)
29 (28) Pedicels more than 15 mm; vexillary stamen connate to tube at base for ca. 1/6 of its length.   20 C. pauciflora
+ Pedicels less than 8 mm; vexillary stamen connate to tube at base for ca. 1/3 of its length.   26 C. tenuiramea
30 (28) Leaflets obdeltoid to obcordate; lateral veins dense, straight, parallel.   4 C. bonii
+ Leaflets elliptic to obovate; lateral veins arcuate with net venation   (31)
31 (30) Pedicels slender, 6-20 mm; leaflets papery.   6 C. capillipes
+ Pedicels stout, 4-6 mm; leaflets subleathery.   23 C. sargentiana

  • List of lower taxa


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