Jun 6, 2010, 2:01:14 AM6/6/10
to efloraofindia, Prashant awale, tanay bose, rites...@gmail.com, Gurcharan Singh, Shrikant Ingalhalikar, Dr. M. K. Pathak
Forwarding again for Id confirmation or otherwise pl.
Earlier relevant feedback:
“This looks like Persicaria chinensis (L.) H. Gross
“I would suggest P. nepalensis
Dr. Gurcharan Singh”
“I am sure with Persicaria nepalensis (Meisn.) H. Gross
Ascending-erect, 20-30 (-50) cm high, glabrous - glandular hairy, annual herb. Stem simple or branched with striate internodes. Leaves 1.8-5 x 0.5-3 cm, lower ones often ± rhomboid with a rotundate base, upper ones petiolate, cordate to amplexicaul with a auricled base, petiole 1 cm long, slightly to moderately winged. Ochrea tubular-truncate, glabrous - glandular or hairy at base 4-5 mm long, brownish. Inflorescence terminal corymbose head, head 6-7 mm in diameter, substanded by an involucral leaf. Involucral leaf sessile, subamplexicaul, ovate to lanceolate, 6.5-12.5 x 2.5-5 mm. Ochreolae 4-5 x 2-3 mm, ovate, acute. Flowers 2.0-2.5 (-3) mm across shortly pedicellate. Tepals 4-5, obovate, obtuse, light pink-blue, 2.0-2.5 x 1.0-1.5 mm. Stamens 5-6, filaments short, fused at the base. Ovary biconvex or trigonous, with 2-3 unequal styles, styles united at base; stigma rounded or capitate. Nuts biconvex or trigonous, shining, 1.75-2.0 x 1.75-2.0 mm, black, enclosed within slightly accrescent ± papery perianth.
"The inflorescence of Persicaria nepalensis is always included by an involucral leaf. Moreover, in P. chinensis, several capitula aggregate to form a panicle like str. Therefore, I still feel this plant to be as Persicaria chinensis. Pl refer to the illustrations in Flora of China 5 : 248 & 249.
waiting for some more opinions.
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