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| | Flora of Bhutan Umbelliferae: Bupleurum |
 | | Umbels loosely compound, bracts and bracteoles leaf-like (or absent). |
 | | Umbellules 4—6(—10)-flowered, 5—10mm across, 1—4 per umbel, rays somewhat unequal; bracts 2—3, unequal, the larger like the upper cauline leaves 9—24 x 4—8mm; bracteoles 4(—5), broadly elliptic-ovate, 2.5—6 x 2—4mm, obtuse-acuminate, equal to or slightly longer than flowers. |
 | | Umbellules (14—)15—20-flowered, 7—12(—15)mm across, (6—)8—15(—22) per umbel, rays somewhat unequal; bracts 2—3(—4), unequal, leaf-like, to 25 x 11mm; bracteoles usually 5, elliptic—ovate, 4—8 x 2.5—4mm, acute or obtuse-acuminate, equal to or slightly longer than flowers. |
| rbg-web2.rbge.org.uk /URC/bhutanumbels/Bupleurum.htm (1194 words) |
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