Taxonomic status: Polygalaceae (Polygalaceae) is the angiosperm, Dicotyledon, a Division rose subclass.
Polygalaceae G. Bentham in WJ Hooker system and the parietal placentation placed mesh (Parietales) and pink mesh (CaryophyllaJes) between: E. Waer Ming will be placed without risk of sub-headings (Sapindales), located in After mechanical tree Branch, A. Engler system, the emergence of seedlings in the Mang ox head (Geraniales) Polygalaceae suborder (Polygalineae) in. And R. Xiaoda in their monograph, its described as "one with any other subjects are not close relatives" of the Section. J. Hutchinson (1967) put it, and Krameriaceae, Trigoniaceae and Viochysi-aceae and other Sections Polygala Head (Polygales), on the Viola Head (Violales) and Laosales head after.
Species distribution: a total of about 1000 species in 11 genera, widely distributed in the world, the most tropical and subtropical. China has 48 species of 4 genera, are produced in North and South, especially in southwestern and southern height.
Yellow leaves of the tree family (Xanthophylleae Chodat) including the yellow leaves of the tree is (Xanthophyllum Roxb.) And so are; Polygalaceae family (Polygaleae Chodat) including Securidaca vine is (Securidaca Linn.), Polygala (Polygala Linn.), Tooth fruit Genus (Salomonia Lour. ) and other genera.
Characteristics: herbs, shrubs or trees. Alternate, simple leaves, rare whorled, entire, without stipules. Flowers bisexual, symmetrical. Components of the total shape, spikes or panicles; sepals 5, ranging from large, which two large, showing petal; petals 5 or 3, ranging from large, most were under a keel-shaped, often with a tassel-like appendage to the top ; stamens 5 +5, often reduced to 3 to 8; filaments often connate sheath; ovary superior, (2 ~ 5) rooms, every room has one ovule. Capsules, nuts, or nuts, with seeds 1 to 2; seed coat or not, often with a kind of FU, with or without endosperm. Chromosome number x = 7. |