Polygalaceae - Milkwort family

Key to genera

1Petals 5, subequal, united into a tube at base; stamens 5; fruit a subspherical berryCarpolobia
1Petals 3 (or minute or 0); stamens (4-)7-8; fruit a samara or capsule2
2Petals free; fruit an indehiscent samaraSecuridaca
2Petals united, the two upper joined to the keel; fruit a capsule3
3Keel-appendage 2-lobed, expanded and leaflike; flowers solitary (in ours); stamens 7Muraltia
3Keel-appendage (crest) fimbriate or at least many-lobed; flowers in racemes (sometimes solitary in P. erioptera); stamens 8 (or 6 fertile and 2 sterile)Polygala

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-20

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2020). Flora of Zimbabwe: Polygalaceae: Key to genera.
https://www.zimbabweflora.co.zw/speciesdata/genus-key.php, retrieved 1 December 2020

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