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GROUP-D- (Astragalus)
Synopsis Of Sections And Species Sect. Aegacantha- Astragalus oihorensis, A. lasiosemius, A. leptus, A. psilocentros, A. lamondiae, A. pseudopsilacanthus, A. grahamianus, A. psilacanthus, A. hemsleyi, A. lamondiae, A. infestus, A. bicuspis, A. polyacanthus, A. oplites.
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| 1 |
Vexillum pubescent |
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(2) |
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Vexillum glabrous |
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(4) |
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| 2 (1) |
Wing and keel partly pilose |
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(3) |
| + |
Wing and keel glabrous |
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Astragalus leptus |
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| 3 (2) |
Calyx with black hairs |
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Astragalus oihorensis |
| + |
Calyx with white hairs |
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Astragalus lasiosemius |
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| 4 (1) |
Stipules connate, sheathing the stem, leaving on annular scar |
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(5) |
| + |
Stipules not connate, not leaving annular scar |
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(6) |
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| 5 (4) |
Young twigs, rachides and leaflets beneath subglabrous |
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Astragalus psilocentros var. psilocentros |
| + |
Young twigs, rachides and leaflets beneath clothed with long loose hairs |
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Astragalus psilocentros var. pilosus |
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| 6 (4) |
Leaflets 9 pairs or less |
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(7) |
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Leaflets 10 pairs or more |
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(14) |
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| 7 (6) |
Vexillum panduriform |
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(8) |
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Vexillum not panduriform |
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(11) |
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| 8 (7) |
Peduncle more than 1 cm long (up to 3 cm), the whole plant villous, brownish or greyish looking |
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Astragalus lamondiae |
| + |
Peduncle absent or less than 1 cm long |
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(9) |
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| 9 (8) |
Vexillum less than 2.4 cm long |
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Astragalus pseudo-psilacanthus |
| + |
Vexillum more than 2.4 cm long |
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(10) |
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| 10 (9) |
Leaflets glabrous above, sparingly pilose below; calyx sparingly pilose (generally with an elongated stem) |
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Astragalus grahamianus |
| + |
Leaflets villous on both sides, calyx villous |
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Astragalus psilacanthus |
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| 11 (7) |
Stipules united throughout with the petiole, tip pointing outwards (vexillum c. 11-13 mm long, fruit c. 8-9 mm long) |
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Astragalus hemsleyi |
| + |
Stipules not as above |
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(12) |
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| 12 (11) |
Stipules longer than the internodes (Wing less than twice the claw; calyx hairs white spreading) |
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Astragalus hostilis |
| + |
Stipules shorter than the internodes |
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(13) |
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| 13 (12) |
Vexillum c. 14-16 mm long, young branches, calyx and leaves not covered with brown spreading hairs |
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Astragalus infestus |
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Vexillum c. 18-26 mm long. Young branches, calyx and leaves covered with brown spreading hairs |
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Astragalus bicuspis |
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| 14 (6) |
Vexillum c. 1.8 cm long |
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Astragalus polyacanthus |
| + |
Vexillum more than 2 cm long |
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(15) |
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| 15 (14) |
Rachis 1.5-3 cm long |
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(16) |
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Rachis 7-18 cm long |
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Astragalus oplites |
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| 16 (15) |
Vexillum panduriform |
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Astragalus psilacanthus |
| + |
Vexillum not panduriform |
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Astragalus hostilis |
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List of lower taxa
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