Published In:
Blumea 6(2): 350–351. 1950. ( Blumea) 
|
(Last Modified On 5/8/2022)
|
|
Acceptance
:
Accepted
|
|
(Last Modified On 2/27/2022)
|
|
Contributor Text
:
Anjum Perveen & M. Qaiser
|
|
Contributor Institution
:
Centre for Plant Conservation, University of Karachi – PAKISTAN
|
|
Synonym Text
:
Verbesina acmella L., Sp.Pl. 2 : 901.1753; Spilanthus acmella (L.) L., Syst. Veg. ed. 13: 610, 1774; Eclipta latifolia L. f., Suppl. Pl. 378. 1781; Blainvillea latifolia (L.f.) DC. ex Wight, Contr. Bot. Ind. 17. 1834; DC., l. c. 492; Hook. f., l. c. 305.
|
|
Flower/Fruit
:
Fl. Per.: April–November Vern.: Para Cress Flower
|
|
Type
:
Lectotype: Habitat in” Zeylona” Herb. Hermann 2:10 No. 309 (BM –000594573) (designated by Koster & Philipson in Blumea 6: 349, f. 1. 1950).
|
|
Distribution
:
Tropical East Africa, Pakistan, India, South–east Asia including Myanmar, Malaysia, Indonesia, Philippines, Thailand, Nepal and Australia.
|
|
Map Location
:
C–7 Distt. Rawalpindi, ca 10 km before Fateh Jang Attock – Fateh Jang Road, ± 30–35 cm tall, erect herb, heads pale whitish, 12.10.89, Tahir Ali & S. Nadeem Ahsan 1926 (KUH); Topi Park, Rawalpindi, Sept. 198, R. R. Stewart 7089 (KUH); About 20 m from Murree on way to Rawalpindi, herb, pink, 60 cm height, 4.10.70, S. A. Faruqi 3508 (KUH); Near Saidpur hills, Rawalpindi Distt., flower greenish, erect herb 50 cm, 18.10.78, M. Qaiser 7032 (KUH); Barakao, Rawalindi Distt., fairly common, 22.8.1980, Y. Nasir & T. Nazir 9201 (RAW); Kala Chitta Hills, c. 10 km from Fateh Jang towards Attock, c. 800 m, Distt. Faisalabad, erect annual herb, 20–50 cm tall, 12.10.1988, A. Ghafoor & Tahir Ali 4233 (KUH); Rawalpindi Distt. b/w Salgaran & Tret, on road to Murree, c. 1400 m, erect c. 70 cm tall perennial herb, flower white, common, 11.10.1988, A. Ghafoor & Tahir Ali 4163 (KUH); Sakesar base, restricted area, Sargodha Distt., erect ± 30–35 cm tall, heads white, 7.9.1989, Tahir Ali & Tufail Ahmed 1689 (KUH). G–4 Karachi, Malir Cantt., common near houses, 28.11.1958, S. M. H. Jafri 2092 (KUH); Karachi, near PCSIR, white flowers, common, 2.9.1966, S. M. H. Jafri (KUH); New Botany Building, University of Karachi, white fl., 28.8.1969, Abrar Hussain s. n. (KUH); Physics Deptt., University of Karachi, white fl., herb, 3.8.1969, Abrar Hussain s. n. (KUH); 4 miles from Shah Noorani on way to Karachi, herb, white fl., height 15–30 cm, 10.4.70, M. Qaiser, Saida Qureshi & Asad Raza 516 (KUH); near Applied Chemistry Deptt., Karachi University, erect, 19.9.84, Abrar Hussain s. n. (KUH); Botany Department along roadside Karachi University Campus, flowers white, 19.7.85, Zeenat A. Razzak & Momin A. Razzak 96 (KUH); behind C.D.R.I., University of Karachi, fl. white, 19.7.1985, Zeenat A. Razzak & Momin A. Razzak 95 (KUH); C.D.R.I., Karachi University, erect c. 30 cm high, fl. white, 27.8.1988, Moin, Bushreen & Zeenat 41 (KUH); G–6 Hills of Nagar Parker, erect herb, c. 60 cm, fruits present, 24.10.70, M. Qaiser, A. Ghafoor & Abrar 3976 (KUH).
|
|
Annual, 23–54 cm tall, herbs, stem branched, pubescent. Leaves simple, opposite, on 5–15 mm long petiole, lamina ovate or obovate, lanceolate, 3–7 cm long, 1.4–5 cm wide, acuminate, cuneate or rounded, strigose, margins dentate or serrate. Capitula solitary, axillary, radiate, 6–8 mm long, across peduncles 1–2 cm long. Involucre campanulate or hemispheric. Phyllaries 2–seriate, outer linear, narrow, ca 6 mm long, ca 2 mm wide, inner phyllaries ovate, ca 5 mm long, ca 3 mm wide. Ray florets female, few, ligule white, 2–3–lobed. Disc florets tubular – campanulate, ca 5.5 mm long, 5–lobed; anther tails obtuse dentate. Cypselas of the ray florets triquetrous to dorsally compressed, dark brown, ca 3.5 mm long, disc cypselas laterally compressed, truncate at the apex, 4.5– 7.2 mm long. Pappus of 2–3, unequal, awns.
|