Difference between revisions of "Persicaria sect. Cephalophilon"
Bull. Acad. Int. Géogr. Bot. 4: 27. 1913.
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|subfamily=Polygonaceae subfam. Polygonoideae | |subfamily=Polygonaceae subfam. Polygonoideae | ||
|genus=Persicaria | |genus=Persicaria | ||
Revision as of 17:36, 18 September 2019
Stems prostrate or decumbent to ascending or erect, branched, unarmed. Leaves: ocrea usually chartaceous, rarely coriaceous proximally and chartaceous distally, margins eciliate or ciliate; petiole usually winged, auriculate; blade usually with dark triangular or lunate blotch adaxially, broadly elliptic to ovate, base cordate, rounded, truncate, or cuneate, margins entire. Inflorescences terminal or terminal and axillary, capitate, uninterrupted. Flowers homostylous, articulation swollen or not; perianth urceolate or campanulate; tepals (4–)5, connate 1/3–1/2 their length; stamens (5–)8; styles deciduous, 2–3, included, spreading.
Distribution
Asia, introduced also in Europe, Africa, Pacific Islands.
Discussion
Species ca. 16 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Achenes biconvex; abaxial surface of leaf blades glandular-punctate | Persicaria nepalensis |
| 1 | Achenes 3-gonous; abaxial surface of leaf blades not glandular-punctate | > 2 |
| 2 | Leaf blade margins ciliate with reddish, multicellular hairs; ocreae lanate; peduncles glabrous or stipitate-glandular distally | Persicaria capitata |
| 2 | Leaf blade margins glabrous or antrorsely scabrous with whitish hairs; ocreae glabrous or pubescent; peduncles stipitate-glandular along entire length | Persicaria chinensis |